I don’t know how many big corporations you’ve seen the inside of…
But they’re just not very efficient about implementing complex policies or policies that depend on nuanced judgement.
My guess is that all these big “social platform” companies are primarily relying on reader complaints to escalate items to where a human looks at them. Mostly the humans doing the looking don’t really understand the policy, and just do their best.
Unfortunately the SJW left early learned to game this system by flooding whatever they didn’t like with complaints. AFAIK so did the “alt-right”, and by now probably even representatives of the “deep state” do it.
So it’s possible that this was the result of action by some private interest whose ox you gored. Not certain, but it should, IMO, be kept in mind.