I don’t have a problem with technology being an aid to umpires. What I don’t want to see is the possible future of umpires removed from the field, making calls from a booth and the call is on the scoreboard.
A couple of years ago I watched a Rays broadcast where someone explained the 3D limitations of robotic strike zones with 3D graphics. Umpires are definitely needed. Otherwise pitchers would start dropping strikes from over the top like we did as kids with the strike zone being the squares on the garage door.
If we could blend eras imagine this scenario ...
Earl Weaver: What kind of a chicken bleep call is that? Are you bleeping blind?
Umpire Hal: I honestly think you ought to calm down; take a stress pill and think things over.