How is this luck any worse than full para, or focus miss, or any other non-guaranteed action in this game? Sure, 20% chance to move first is bad, but a 25% chance to not attack at all is acceptable, or a 30% chance to miss that FB on a Heatran, or insert random chance here, and there aren't any calls to action on that. This isn't like evasion where it and it alone makes shit practically unplayable, but just a 1/5 chance, worse than OHKO moves, to move first. This one item, which if ran makes it so you can't have a LO or Band or whatever, simply makes you go first. Its a one-turn Trick Room against your fast sweeper, and Trick Room isn't broken, so why is a held item with a less than 1/4 chance to even proc in the talks for being broken?
Counterpoint: why was King's Rock banned when it was barely useful on a select handful of mons like Cloyster and Beat Up Weavile despite not falling under Evasion Clause? With Bright Powder, Snow Cloak, and Sand Veil you could certainly make that argument, but King's Rock was just a total RNG fish item that was generally useless unless it procced but could potentially change the course of an entire game if it procs. If King's Rock was banned on the grounds that mons that abused multi-hits had a non-negligible chance to RNG fish their way to a win, why shouldn't Quick Claw be banned on similar grounds?
I don't think that comparing Quick Claw and/or Quick Draw to inaccurate moves or Scald burns or Iron Head flinches is intuitive, nor do I think that comparing it to Trick Room is intuitive either.
If you're putting your Ground-type into a situation where it could be on the receiving end of a Pex's Scald burn, it is 100% your fault. If you're being forced into a situation where your only reliable way to break past Heatran is by landing one or two Focus Blasts on it, that's shitty teambuilding and/or backing yourself into a shitty situation where you didn't take advantage of chipping Heatran throughout the game in the first place. You have mons like Fini that prevent Scald burns, you have your own Pex that doesn't particularly care too much about getting Burned, mons with Scald don't fear getting Frozen as much as others, etc. And, most importantly,
I know that the Lele in front of me is running Focus Blast, because that's what Lele runs. But you won't (and, realistically,
can't) be like "hey, whoops, I didn't prepare for and/or play around Quick Draw+Quick Claw G-Slowbro this game!"
And comparing QD/QC to Trick Room isn't intuitive either because Trick Room is
very deterministic in terms of how it works in theory and in practice its flaws are more of a matchup fish issue than a sheer RNG fish issue. Trick Room is very much a gimmick, just like these aforementioned items, but Trick Room is a gimmick that can (and usually is) played around in a relatively straightforward way. QD/QC is an individual 20%/30% chance
each turn to just outspeed whatever's in front of you within the same priority bracket. More often than not, the mon you're running Quick Claw on is just going to be running a shit item that doesn't do anything; but here and there you'll have a mon arbitrarily running a terrible item getting lucky and just straight-up cheesing its way past a matchup it shouldn't win in any world normally. In the case of Quick Draw+Quick Claw in particular,
those odds are actually comparable to King's Rock Cloyster's odds of flinching something with a 5-hit move. That combo is obviously
extremely telegraphed compared to vanilla Quick Claw since it requires a team to run G-Bro, but King's Rock Cloyster was generally pretty obvious as well during its time. This ultimately transforms QD+QC from "a one-turn Trick Room against your fast sweeper" to "a 44% chance for a mon with base 30 Speed to outspeed whatever is in front of it," and that's a
very different situation from fighting a Trick Room team.
Lastly, nobody here is saying "Quick Claw (or Quick Draw) is broken," and if anyone
is saying it's broken that person is objectively incorrect. G-Darm is broken. Dracovish is broken. Urshifu-S is broken. Spectrier is broken. Cinderace is broken. A mon like Calyrex-S or Necrozma-Dusk-Mane would be broken in an OU context. The mons I mentioned are just far, far,
far too strong for OU and still are to this day and would undoubtedly warp the entire metagame around themselves should any one of them exist here. Neither Quick Claw nor the only mon that has Quick Draw as an ability is even remotely comparable to any of those mons I mentioned, because they are not broken. The argument is that these two elements are inherently
uncompetitive, under the same extremely broad umbrella as Evasion, Baton Pass cheese in many generations, Moody, Shadow Tag/Arena Trap (although some may argue that these two abilities are outright broken; I believe they could be both), and King's Rock are.
If King's Rock is uncompetitive - and I absolutely believe it is, and that was the general consensus when the Council banned it - then I can't really understand why Quick Draw and Quick Claw are not considered uncompetitive on the same grounds as King's Rock was. And if Moody even without Evasion (which was degenerate enough that shitmons like Glalie, Bibarel, and fucking
Bidoof were deemed problematic) and Shadow Tag/Arena Trap are considered uncompetitive, I think Quick Draw as an Ability should be too since the ability in a vacuum will always be able to cheese out wins here and there, no matter what mon it happens to be on, and the fact that Quick Claw as an item exists and has very rarely been used on mons like Melmetal and Manaphy (although the latter was more of a BDSP thing and Manaphy as a whole package was deemed outright broken in that tier, with or without Quick Claw) is a testament to the fact that it's something that very much exists. And again; nobody thinks that Quick Claw and Quick Draw are broken; just that they're possibly uncompetitive, not unlike other elements that have been dealt with before, with the King's Rock ban in particular being the one I think this aligns the most with.
EDIT: A typo