I think Forrest has been acting like a tool on the show. The thing people used to like about him was his sense of humor and he seems to have lost that completely. He is ultra serious and even when his fighter won a few shows ago he said something like "You underperformed but you still won" I'm not sure maybe Forrest just thinks he is amazing and his egoexploded.
Rampage is still a joker and thats what the show is supposed to be entertaining not a coaching competition the fighters in the show are mostly experienced except a few so forrest or rampage aren't going to be taht influential so lets have some entertainment.
After seeing the season so far though i have lost interest in Forrest and gained it in Rampage. I mean he is the champ and a humble dude and he is hilarious. I hope Rampage knocks the funny back into Forrest when they fight.