Just from my personal observation, it seems like the more MLB implements technology, the better the umpiring on the field gets. Sure, sometimes it's bad, sometimes it's terrible, but across the board it seems to be getting incrementally better.
The NFL is most definitely going in the other direction. I used to be pretty happy with the officiating week to week, whether I was watching games I was invested in or not. This year in particular, the officiating is worse than it has ever been that I can remember. The more they implement technology, the worse it gets.
It's at the point where it's nearing NBA level bad, and that means unwatchably bad.