not sure I agree. it's still one of the most exiting plays in the game only slightly behind and inside the park home run. the risk of taking away the excitement of a close play at home is not a good thing. I understand the need to protect the investment. This has come because of Posey's ankle injury and not because of the concussions. franchise player went down and owners went sour, but the Posey injury was mostly his own fault. his feet were badly positioned and he was blocking the plate without the ball.
I agree 100% with saying you cant take the catcher out when you are out by 10 feet, but not a blanket rule to say no collisions. draw a line 10 feet from home and if the catcher is standing on the plate with the ball before you cross the line you cant take him out..... that I could live with.