I agree that something should happen when a challenge is ruled incorrectly. That shouldn’t happen. I doubt it happens with the frequency suggested in this thread, but when it does something should occur. Not sure what makes sense though.
One thing I don’t agree with is that refs have it out for the Cs. 39 FTs for the Cs last night compared to 25 for the Cavs. Obviously that doesn’t tell the full story but it’s not like all call were going one way. Generally I think there’s no anti-Celtics bias. Every team’s fans think their team is getting mistreated.
100% on the refs always hate 'our team'. Every bad call is a good call for the other team
I also think refereeing is really difficult, and the increase in broadcasting quality hasn't made it any easier for the people on the floor. Things look very, very different from the floor than they do on TV. Challenges don't do much to address that, to be honest.
Finally: if the referees would call every foul the game would be unwatchable - which is why the beginning of the season is always rough, because of the 'points of emphasis' are new for the referees and the players, so the rhythm of the game isn't quite there yet.