I honestly believe that Horry didnt hammer Nash as hard as Nash made it look. Yes, it was intentional, yes it was forceful but I think Nash flopped a bit to make it seem like an NHL body check.
Horry was frustrated about the game so he tried to stop Nash from crossing mid court, who was trying to zip past Horry. Robert just wanted to stop Steve on his tracks, hit him hard enough for Nash to get the message that the spurs are still here.
Ordinarily, that bump would have just stopped someone quickly, or slowed him down and bounce a bit to the out of bounds, side court area. But Nash saw the hit coming so he timed it so that exactly the time he got hit, his legs would be in the air. That way it'll look more nasty. I admit Horry gave a hard foul, but if you get bumped like that with your feet still planted on the floor, you'd just bounce out of bounds and just stop.
It was a regular plkayoff foul. Watch it again on youtube.
