How is its viability as a setter hurt by washtom's presence any more so than SR Gliscor and Hippo, who are hard countered by washtom and 2hkoed by pump regardless of spread- even with their access to recovery?Replying to this because I agree with a Swampert drop and don't think you really considered many of Hilo's arguments. You said that it isn't meant to check Rotom-W, but that doesn't say that Swampert isn't hurt by washtom's presence in the tier. And even if it can still get both rocks and toxic off against Rotom-W, Swamp is still taking a lot of damage in the process and is preventing itself from setting rocks again if need be (Hilo already said this btw). The main reason that I don't think Swampert deserves its current rank is not only because Rotom-W can compromise its Electric-type checking abilties, but because as Hilo also said and you seem to have not acknowledged, its lack of recovery really sucks in the current metagame. Sure, it's always been something that's held Swampert back a bit, but VoltTurn and Spikes play styles are extremely prevalent and both hurt Swampert a lot in that it's easily chipped into range of not reliably checking the things it needs to. This is why lately, Gliscor, Hippowdon, and even Seismitoad due to Water Absorb have given Swampert a lot more competition than ever before, and at times can be more preferable as rockers. I just don't think that Swampert is currently on the level of anything else in A, and would have its viability more accurately reflected in A-. It also struggles to check things like Cobalion and offensive SD Scizor in a Spikes-filled meta, is struggling to check Mega Manectric all the time due to it running HP Grass more often, and isn't as versatile as you say it is, since while it has options like Roar, Toxic, and Counter at its disposal, it can only pick one to fit in that fourth slot due to its need for STABs and rocks.
TLDR: Swampert is too hampered by its lack of recovery to do its job as reliably as before at this stage in the metagame, and as a result it isn't as good defensively. Drop it to A-.
Lack of recovery really only hurts it on bulkier builds- would a move like recover really be that much of an improvement over toxic on an offensive build? Even on more passive builds, toxic is still an incredibly good move in a meta with m-lati.
As I've also said, which you're not acknowledging, it's not meant to be a wall that can take on powerful setup sweepers, it's meant to be a pivot/sponge that can set up rocks.
In terms of its peers in A, imo it's easily on par if not better than Drei and Mamo, and imo m-aero in the current meta.
Scald, EQ, Toxic alongside rocks is incredible utility- it's not a fault, but an advantage that it also has access to roar/counter.
PS: find me someone using hp grass mane and i'll show you someone who doesn't know glisc exists.