There are two things the league needs to take out of that game on Sunday and put some serious consideration into...
1. Better on-site oversight of individual incidents like Tua's 'back'. There is no way he should have come back so quickly and a league official should have guaranteed the entire protocol was followed.
2. I 'get' home field advantage, and I don't want to take anybody's legitimate 'gain' away from them, but heat is literally a killer and every player's health was at extreme risk on Sunday. They need to flex those conditions to night games, not 1 pm starts.