Here is my reply to Gowanusaurus Rex regarding the same questions he asked on Bluesky:
"I'm not familiar with TTRPG games so I cannot really tell. DINOJAM is a video game jam with a ranking system where judges are devs that submitted a game to the jam. In the case of a TTRPG entry I'm not sure how relevant that would be, especially if you have expectations regarding the ranking score.
Personally I have nothing against it. The jam is supposed to be relax, meaning everyone is welcome as soon as main rules are followed.
And honestly I would be very happy to see a TTRPG game being made because of DINOJAM, of course."
I hope this answer your question.