MacFarlane really really truly believes people want to hear him pretend to be a lounge singer and I don't get why no one close to him tells him to stop

I think the impression that Flame King and Don Jon were enjoying the act of fighting was intentional. As FP mentioned in a previous episode, the prevailing attitude in the flame kingdom is "all deceitful and Shakespeare." That would explain why the king announced his plans about his plot out loud- gotta keep the…