Yup. No easing into it, let's rip the band aid off and go.
I had heard a point made elsewhere that makes some sense. The younger players who have been exposed to this in the minors, they should be set in the new ways whilst the older major leaguers are going to the ones that need to be removed from their ways. In fairness to them, that slow approach was allowed. But if MLB wants to change old habits, change them from day one.