i agree Max that baseball is a "fail" sport. as you point out....a batter that fails 7 out of 10 times is one of the best players in the league.
but i believe umpires to be separate from that. they are "judges" not "players". we should expect 100% from the people that enforce the rules. or as close to 100% as possible. if that means a robot helps the human umpire then so be it. i am fine with my players failing 70% of the time. i am not fine with my umpires failing 13% of the time.