Had this discussion elsewhere too.
According to the rules: fair play.
Should those rules be changed?
Only if you care about athlete's health.
Currently, when someone loses the handle of the ball, it's LEGAL to dive at them, from behind, taking out their legs from underneath them, as long as you go straight for the ball.
According to the rules (or rather, according how games are being reffed) it seems legal to obliterate any number of ACLs as you do this.
Was this particular instance an accident? Sure. Was it legal? Sure. Was it dangerous? Well, clearly. Cuz the guy got hurt. Simply no discussion possible on that because, well, the result is right there.
Was it a dirty play? Depends on your definition of dirty. If it's purposely harming someone? Nope. Not dirty. If it's doing something with no regard of someone else's health? Debatable. This was a borderline incident regardless.
I wouldn't mind a rule being put in place to prevent this from happening. If everyone was like Smart we'd have a lot more injuries in the world. And honestly, whilst I love physical basketball, I don't think injuries are fun. At all. Ever.
So, yes, good hustle. Yes. Dangerous play. And apparently, yes, legal.
I guess I'm on team Kerr?