to me, all of it should be checked in that situation once u get to the last 5 minutes. also liked them checking pp's late 3-ball after they had called it good. dont care how long ot takes, get it right. although with pp, should be a 30 sec rule. if u must keep looking at it, u go with the call on the floor so u dont spend 30 minutes. i get that. bynum's was obvious, thats the only ones u overturn. I DONT LIKE ALL THE CHALLENGES NONSENSE. PERHAPS U COULD give each coach 3 for before the last 5 minutes. if he gets it right, he gets another as in tennis. once in last 5 minutes, everything gets re-checked if close.
i dont want perfection (flow of game counts too) just an extra view here and there and i dont want a massive expansion of what can be checked. no checks on traveling or charging or other judgment calls. again, flopping could be checked and challeneged!