But he wasn't suspended.
I think you can argue that the play was "dirty" because it had an unnecessarily high chance of leading to an injury, and you can argue that they should change the rules. But I don't think you can successfully argue that he actually broke an existing rule. So how can you justify a suspension?
The key word is should. I know most of you are biased, but what he did should not be legal. im done arguing is. If everyone here thinks it is acceptable to tackle middle a infielder, than so be it. If the Phillies were in the playoffs and someone did this to JRoll/Utley, we all would be irate and be demanding a suspension. No one even try to argue that. There is no place in baseball for that and the rule should be changed.