Simple knowledge of angles shows that there's no way the ball wasn't above the rim when Davis tipped it. After the game I double checked the NBA rule on tip ins thinking I must have had it wrong and they call it based on the center of the ball. Nope: If any part of the ball is above the rim when a player touches the ball then it is basket interference.
The above basket angle dispels any doubt: If the ball was off the rim you would be able to see a gap of daylight between the ball and the rim. It's even possible for it to still be basket interference if you can see daylight between the ball and the front rim. However, it is 100% impossible for there to be no basket interference if there is no visible space between the ball and the rim from the camera angle that shoots from above the backboard.
My question for you all is threefold:
1) Why wasn't the call overturned on review? I believe they reviewed it and had access to the same angles we had.
2) Why isn't anyone talking about it? A missed call deciding a game is big news.
3) Why didn't they get it right? Home court preference? Joey Crawford not liking the Celtics? Blindness? End of game liberty?