As I mentioned in my previous post, checks to offensive Gligar aren't too hard to come by, alongside Doublade X Dragonite, we also have Lairon X Dragonite, Magneton X Hydreigon, Electabuzz X Vivillion, Type:Null X Quagsire (or any Quagsire crossed mon for that manner), and numerous other defensive threats that can tank a hit from it and threaten to revenge kill it. Unless you have calcs proving how Gligar can break through the mons I had just mentioned previously (without making it +6 cause like obvi the opp would not allow that to happen so easily), then I really don't see the issue here.
what? I mean those mons checks its defensive sets nicely yes, but you Can not say the same for its offensive set! Taunt or substitute easily allows glidos to bypass a good portion of its checks. Doublade / Lairon are usually used as bait iirc(Dtail can't break sub/Taunt blocks Roar), and where are these "Unaware" users you speak of? I'm assuming no one is using glidos correctly when taunt shuts down any unaware user, usually forcing the said mon to switch out(type can't do damn thing, it HAS to use uturn). I mean, it can pretty much stallbreak is what I'm saying.
I already mentioned Electabuzz x vivillon is a bit of a soft check(I think), especially if it doesn't have a boost under its belt(and if gligar is behind a sub) or sleep powder if it wasn't used on another pokemon(or if gligar is not running sub), but even at +1 w/Lo HP ice it still doesn't reliably kill it! Whilst acro always Ohko back. Magneton is the best offensive answer(assuming it still has the Steel typing), you got me there lol but it absolutely needs HP ice
I'm in agreement with some of your points, as far as gligar having other viable sets that are more easier to check(sorta, I think hariyama will just take its place) and possibly getting rid of Gyarados instead. But man, that's just it. Why ban Gyarados? "bruh, look at its stats boost" ok? As mention already, Gyarados doesn't make anything else nearly as centralizing as it does with gligar. because Add in the fact, Gyarados doesn't give a good reliable STAB flying move unless you're into Z-Bounce I guess. Doesn't give recovery and adds an typing that's not necessarily "useful" depending on what you're running(even then, it doesn't "break" the said mon). Most importantly, you're only left with one measly point in speed! Effectively making a lot of other Gyarados abusers easier to check(defensively and offensively) since no one other than Murkrow, Archen, or anything else that's not above 70 in Speed(imo) can not abuse Dragon dance or taunt / substitute for that matter since usually once again, Nothing else is bulky enough to even run the same offensive sets and ev spread as Glidos! Add in ANOTHER fact, that gligar can afford to run Moxie since its bulk is literally unrivaled by any other Gyarados user + it's typing. This is kinda similar to beat up, like, sneasel was the only True abuse. But in this situation(imho), Gyarados' is only broken on GLIGAR!
Lol, I'm honestly still thinking it through, this isn't me voting or anything YET! just wanted to clear up some stuff about your arguments. Great discussion though from everyone!