Meh, I think it was a solid playoff foul...
If this is a flagrant, the league has gotten much softer than I thought it was.
I don't really see how it makes the game better if we allow players to basically knock guys to the floor and say "Make it at the line, punk."
Especially when a guy is moving at full speed and is already in the air.
Play good defense and get between the man and the basket.