Itch.io tells search engines not to index games when appropriate, but the major search engines now ignore these requests.
Viewing post in Game approved but profile still under review?
The page is under quarantine and the creator page itself is under review. Probably because of all the external links. It was updated a few days ago, so maybe it was indexed for a few days.
Google obeys robot txt, so if the game was indexed and the robots changed after that, google will not automaticially remove it immediatly. The page itself works, after all. And I have doubts that Itch would specifically request google to remove it from index, just for a temporary delisting.
Theoretically, it is a temproray delisting that should last only "a few business days", so telling search engines to forget and then reindex a page seems pointless.
Then again, I have no clue how Itch handles this.