This is ridiculous because baseball is already a pretty slow paced game, and doesn't need things like coaches and players not getting there way to slow it even further. Also I was taught that the more you argue with the officials in any sport the less calls are going to go your way and I don't know about you but I like it when calls go our way. And to think that is not the only rule they have came up with to slow the game down.
If the MLB keeps adding rules that slow the game down and ruin the spirit of the game, it might die as a sport. An example of one of those rules is that they can now call for an instant reply when challenging a call. That slows down the pace of the game big time. Instead of just dealing with the cards your delt now you may slow the game by 10 - 15 mins so the umpires can watch a video of what they just saw in their own eyes. Part of the game is the human aspect of the officials. They make mistakes sometimes and that's just part of the game but now they are taking that part of the game