As many others have stated, the shot was NOT a goal tend, but rather a tipped shot that went in. The three points deservedly went to McInnis because it was his shot which was 'almost blocked' by Tim.
It's easier if you look at it like this: If McInnis had shot a three-pointer and someone went for the block but just grazed the shot with their finger, and the shot managed to still go in, it's still a completed three pointer despite the fact that the other team got a touch on it. It happens all the times when players just manage to barely touch a jumper on the way up and it still hits home.
Tim basically did the same thing, instead his touch on the ball tipped it on the way back down and coincidentally, helped it into the basket.
It was a good call, though I still wasn't very happy about it.
