So sorry this is happening to you.
I was talking to other adult game devs and they said there's other adult early-access games that are still getting released. fingers crossed it's just that one reviewer and not a super recent blanket ban on Adult Games in early access.
Apparently, Steam said it would not allow adult games in early access a year ago for fear that an adult game would pivot after review and add content that breaks TOS after release.
You should push for an appeal for them to review your whole game's planned content from your design doc to steam staff. and perhaps that will convince them to let you into early access.
In any case, I hope you can get the the early access removed from your game so you can be eligible enter another next fest at least.
Wish you the best, I love your work!