The answer is in the reason the rule was changed. Have you ever heard of Ray Fosse? He was hit in a similar manner by Pete Rose in 1970. These types of injuries continued for years until MLB changed the rule on collisions at the plate. His slide was inside the baseline, which was a violation of the rule. He was called out and suspended for two games. End of story.
https://www.youtube.com/watch?v=FtkU3apSMHw