They can't hear her roar over the guitar player's temper tantrum.
If this leader of a church cover band had paused for a moment to ask himself what Jesus would've done, he might have handled things very differently. Sure, Jesus would've quit on that band as well, just with less shouting and guitar-smashing. Because the band's version of Katy Perry's Roar is pretty awful. The singer hasn't even bothered to learn the words and the drummer sounds like he's playing along to a Zeppelin song in his head. But at least the audience can hear them! The supposed leader of the band is strumming an acoustic guitar that's not even plugged in. He may as well be strumming a tennis racket. So maybe him quitting the band is a blessing in disguise. God often works in mysterious, sometimes obnoxious ways.