I was confused as well. If there is umpire interference, the ball is presumably dead hence the runner going back to first. But all sports have dumb rules and maybe this is one of themI did not understand how the umpire interference played into all that, did you?
The broadcast made it sound like the reason UT challenged the batter interference was because the umpire interference had already occurred. Almost like if the umpire interference hadn't occurred, it would've changed the whole situation.
That would have been a really bad way to lose a game, especially since the pitch wasn't strike to begin with.