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Covert Cloak looks like it has steeply increased viability in this meta, as 3x a 0% chance is still a 0% chance. Of course, the Cloak users aren't wearing Boots, and Knock Off does away with both items, so I'd leave Covert Cloak unbanned for now.
Since we're mentioning hazards, I have to warn that Toxic Spikes is by far the most anti-synergistic hazard to go with the Burn-inflicting Beak Blast, to the point that I'd ban Toxic Spikes from movepools if possible.
My brain did somehow completely ignore the "priority is not ignored" paragraph of your post...
...possibly because it invalidates part of your premise and therefore makes the OM self-inconsistent. While no priority is arguably the even bigger programming (mainly software architecture resolving...
I'm seeing just as many nightmares programming this and nasty implications regarding moves as with this proposed OM from 2024, "My Turn", where each player takes their turns at completely different times and players do not input their moves/switches simultaneously like they usually do...
Here are the survey results! There were notably 31 responses to the survey!
Notably, no two responses to "Put anything else you would rate 4 or higher on the ban-worthy scale here (multiple entries accepted)" shared an item. While one of the responses to that question was "Pokemon...
Check: :ceruledge:
Counter: :muk-alola:
The Tinkaton set is notably stuck using Tera Ghost to counter Hoopa-U locked into Focus Blast, who outspeeds and 2HKOes otherwise. In that way, it suffers similar problems to the Muk-A set, just sooner.