Maybe they reversed it in that case after outrage… I’m basing it on the reporting:

polygon.com/…/itchio-steam-sex-adult-games-delist…

It’s also waged a campaign against titles like Detroit: Become Human, Quantic Dream’s adventure game that is decidedly not an “adult” game, and titles like hentai puzzle/dating sim Huniepop. The worry is that, by bucking to pressure from groups like Collective Shout, platforms like Steam pave the way for more extreme censorship measures.

So maybe it was a separate campaign regarding Detroit?