On the one hand Grayson started out making a basketball play...a hard foul, but at least it was a play on the ball. I have seen people arguing that because of this he actually deserves no punishment because it was a play on the ball.
But where these people appear to be blind, is that after said play on the ball, Grayson then comes and swings his whole other hand at Caruso after his initial foul is already turning Caruso sideways. If JVG can say that the second part was unnecessary and dangerous, idk why everyone can't say the same. This act in a vacuum is enough for a suspension I say.
The gray area is taking into account Allen's history as a dirty player at Duke. Should that matter for his NBA career or not? He's been in the league for some time now without much fanfare of dirty plays. This is probably the first one I can think of in his NBA career. Personally when I think of Grayson Allen, the first thing that I think of is his dirty plays at Duke. Should that color the league's decision of how to punish him? That I am less sure of.
All that said, if you deliberately foul someone and it results in an injury like that, a one game suspension seems like a slap on the wrist, a little disproportionate to the broken one Caruso has to now deal with. We should further be relieved Caruso didn't get an additional concussion from smacking his head on the floor when he landed. To me, he gets off too easy here. I wouldn't say we should injure him deliberately next time, but he definitely deserves a very hard foul.