TBH the only mon I think needs a quickban left is Magearna. I think it’s inherently over centralizing and is just way too strong. It’s an amazing pivot, wall breaker, sweeper, and is fat enough to just blanket check stuff. It also enables most of the other potentially problematic mons. Be it a slow volt switch, trick, trick room, or just nuking something it makes most of the other new drops scarier. Mag is not only good, it makes the rest of its team that much better.
I think that after Mag is gone, the council should wait on any other quickbans for ~1 week. Mag being out of the meta changes a lot and I think given how strong a partner it is for every potential problem mon, it could be worth letting the chips fall where they do. Maybe fat teams get to hold their own better without worrying about Mag. Maybe HO can afford to pressure Zamazenta C more. Maybe Sneasler falls out of favor with teams better able to handle it. Nothing is certain, but I do feel most of the mons potentially on the radar would be easier to handle with Magearna gone.