To be quite honest even if the current state of affairs is rectified I'll be skeptical of using Itch as a platform going forward. The lack of transparency with the people who make the website worth using and the willingness to hold their livelihoods in limbo for imagined violations invented to suit payment processors shows which side Itch is on. Even if their hands were fully tied, there's a certain degree of dignity they could have afforded people, and they haven't put in the work.
I think the point of them being more vague also allowed for NSFW/questionable content games to be able to come to Itch.io in the first place. Valve/Steam has been much more transparent per se, but also stricter on adult games (until very recently). But they also have that age verification measure, which I am not sure if itch.io has properly implemented sitewide. If someone like Valve/Steam has to mass delist games to comply, itch.io would have been suicidal to act like the hero for NSFW content