Here is my take on this whole thing:
I consider myself a baseball purist. I love the history and traditions of the game. I loved the game when I played it, and I love it as a fan. The play was completely in the rules of the game, clean play all the way.
However, I have never been a fan of being able to run over the catcher. I think of the cather as fairly defenseless in that situation, even with the gear. To me, it's just an injury waiting to happen, for both the catcher and baserunner involved in these collisions. I have always felt it's a play that doesn't really mesh with the rest of the game. That's just how I have always felt, before and after the Posey incident. I think it's safe to say everyone wants the players to stay healthy, and everyone wants the stars of the game to be on the field. To me, this rule just kind of spits in the face of that notion.
That being said, I do think MLB will take a look at this, but I doubt they make a change. I hope they do, so young talents like Posey, McCann, Santana and so forth can hopefully avoid injuries of this nature in what is already a very physically demanding position. Also the runners as well.
Either way, I'll never stop being a fan of the game.