Crawdaunt Rise: Yes
Has practically no switchins except bulu and kind of fini, who are easy to lure/take advantage of at this point considering how much the meta has had to adapt to zygarde/ninja/etc checks. Outspeeds and 2hkos tangrowth, 2hkos mega agron and pyumukuk with band, etc. God forbid it have swords dance against stall. Like mawile, it can't really switch into many offensive mons, so it needs some support to get in (hence why it's C+ and not A). It's not impossible though considering it forces out a set of common mons (heatran assuming they dont want to waste firium on crawdaunt or get kod by a band aqua jet lol, defesnvie mag, toxapex, celesteela, etc.) that are genearlly used as pivots. So usually just double switch out of gren, lele, etc., because they dont really have much room early on to risk not switching in the pex/mag/etc. This plus aqua jet lets it do at least some work against most offensive teams.
Also, trick room is a bit weaker now than it was before, but it's worth noting that crawdaunt is second only to marowak in usage for tr abusers. Since TR staple cresselia is now in C, it makes sense that crawdaunt should be higher, since it is also a tr staple but has use outside of tr as well. Tbh marowak and cress should probably be in the same rank for that reason (and because marowak also decimates p much every defensive mon, can set up rocks, and can tank some hits from choice kartana, heatran, koko, etc.), but marowak isn't as good as crawdaunt outside of tr so ymmv.
Garchomp Rise: Yes
Also decimates stall in sand, but does much better against balance/offense teams because of its faster-than-lando speed and zygarde-level bulk. Plus, you dont have to megavolve right away if you just want a normal garchomp w/ no item for a bit. It sucks to lose z move on normal garchomp, but mega stone edge in sand is only a bit weaker than z stone edge, so it's not that bad. Plus, you can abuse broken sand veil before evolvng! It also sucks that you cant use mega ttar, but avest ttar, etc. is really good rn anyway, so its not that big of a deal. Aslo as a sidenote, you can use normal garchomp for a bit before mega evolving, so it should not be 8000 ranks below normal garchomp lol I get ranking megachomp itself independently, but in reality we shouldnt ignore that utility since it's one of the few megas who is useful before evolving even without an item.
Clefable Drop: Yes
Everytime i try to fit clef on a team lately, it ends up opening more holes. It can't switch into/wall and is even set up bait for heatran, z-fly lando, greninja, mag, mawile, z-zygarde, kartana, medicham, lele, volc, blaceohalon, etc. Unaware sets have trouble with most of the same things, if not more. It's easily overpowered by most of the same things, on top of taking chip damage. On stall, quag or pyuk are more consistent in many builds.
It's still pretty good at what it does, obviously, but the meta is not kind to it right now, and it ends up being a liability too often for it to be at the very top.
rain sweeper drops: yeah.
Kingdra is underrated and could potentially stay, but rain as a whole is weaker right now, so it figures that the 2 optional rain sweepers should drop accordingly.
gyara drops: no
Sub z gyara is still a potent threat that is underprepared for. Mega gyara isnt as strong, but that's why it's a sbrank lower. That said, it hasn't really gotten worse. If anything, the meta has gotten more favourable. Clefable was a flimsy check, but it still threatened to stop a sweep bar a waterfall flinch because of moonblast. Quagsire and pyu are far less threatening. It doesn't really care about lando, and it fares well vs both Heatran and Greninja, especially on offense where your defensive options are limited. Being able to play mind games with flying/dark typing by postponing transformation is nice, and waterfall flinches suck and really aren't that uncommon, to the point where its hard to feel safe running just one counter knowing that an inevitable flinch is RIP
It's not like grass types weren't already everywhere. In fact, notice that lots of the recent & proposed rises typically struggle against bulu and tangrowth. If anything, zfly gyara is a nice matchup (especially if it isn't obvious whether or not it's mega) as long as your don't waste your z move on something dumb. Plus, all the outrage/iron tail
zygardes, ice beam ash grens, etc make it pretty easy to support gyara. Or be extra boojie and run ice fang on mega gyara to help pave the way for zygarde and co.
They might drop eventually, but idt this is the right time for that, especially normal gyara.
irt jordy's shuckle nom: shuckle should not be unranked. Its utility is super underrated on web hyper offense. Role compression w/ rocks+webs is really useful, especially since most rocks setters are defog bait. Even if they can ko back, webs are still gone, and they rarely have the ability to actually take advantage of the free turn via setup, etc. Idk what you mean by webs/ho not caring about an extra teamslot. That's just straight up false for obvious reasons, especially in this gen/meta. One teamslot is the difference between being able to break stall, or check hyper offense, or deal with hawlucha and rain and sand rush, etc. You're severely underrating synergy on offense builds
Meanwhile, shuckle can sack itself w/ final gambit on the defog/spin switchin, letting you stop defog and gain huge momentum. Encore is obviously great for taking advantage of defog/allowing set up turns for teammates, and infestation can mirror the utility of final gambit by preventing switching in the first place.
I dismissed shuckle too until I actually played with it and realised it differentiates itself well from the other 2 setters and offers some cool flexibility in the rest of the team (like the sableye vs aggron dynamic). See ske mask's webs team for a modern example. It's a v good team