I so dislike priests like this who turn over the mass to the "music directors", 999 times out of 1,000 it means blah sermons, so more time can be given over to a 10th rate organist and a 12th rate singer to give their interpretations of classic church hymns. It's worse than the way a lot of singers mangle the national anthem, but not quite as bad as the guitar masses of the 80's.
Most Catholic priests have absolutely no musical education or ability at all. The younger ones, the John Paul II/ Benedict generation, are better, but not by much.
They have to learn it on their own because the seminaries teach absolutely nothing about the great Catholic music heritage. So most of them don't.
In contrast, the Episcopalians may be heretics, but at least the seminaries teach them about their music (most of which they stole from us. But, we weren't using it . . . ) So their music is excellent even though their theology is completely loony.
When a musically ignorant priest interferes in the music, it's worse than useless. You wind up with happy-clappy garbage like "Here I Am, Lord" (a/k/a "Here's your pizza") or the execrable maunderings of the likes of Bernadette Farrell or the St. Louie Jebbies. 1500 years of Palestrina, Tallis, Byrd, St. Gregory the Great, Josquin . . . and they all seem to be stuck in the 70s and 80s (a musical low point if ever there was one.)
A priest's job (unless he has a music degree like Msgr. Pope in the Archdiocese of D.C.) is to hire a good music director with appropriate credentials and a firm grasp of real Catholic music . . . then stand back and let the big dog run.