No, this is just something they wanted to do for a long time.
The hole ordeal of Payment Processors deleting itch games isn't just on Itch, but also on Steam as well because of a group has forced Processors to restrict payment of adult content.
Itch is currently trying to satisfy the Credit Card Payment Processors by first preventing adult games from being seen on the store, then remove any game from the list the CCPP wants removed.
The group in question is a feminist group that didnt like adult games with women being abused in them.