I really don't have an opinion about it.
It will suck for some pitchers as they have to alter their routine.
Catchers are starting to use a wrist pitch signal that gives the pitch. So tech should also help with game flow.
Do I care? Not really. There will be feed back from pitchers coaches and managers in season and it will be a work in progress.
On the shift. This is a bit of a trigger subject here.
It has made the game suck. It is not softball where you have 4 outfielders. So it is a bunch of stat guys getting together and looking over charts and putting the pieces at the most likely spot that the ball goes
It was a good idea but it ruined the game. HR or easy out was the normal result. Gap hitting was nixed with 2B playing the gap. I believe that Heyward's sharp decline was a direct result of the shift. He came over as a gap hitter. And sucked during the shift era. So that investment went to shit. Dont be shocked when he rebounds again.
It made the game unwatchable. HR's are boring. Lining a double into the gap and seeing if he will go for 3B is good baseball. Hitters shooting the gap has been a missing part of the game. It should make a rebound.