For the people who want nothing but dominance, I think that sends the wrong message to prospects. Presumably, they're in the minors to learn to be a quality MAJOR leaguer. A lot of that is to work on your weaknesses. If you're just supposed to dominate minor leaguers... suppose you have a fastball that's gonna outclass most minor leaguers, but your changeup sucks - and you need that changeup to win in the Majors. Do you really want to encourage that pitcher to not develop his changeup in the minors?