Completely disagree. "Another Cyclone First Down" isn't celebrating mediocrity.
I was just glad they stopped doing it in the 4th quarter last week. That really would have been celebrating mediocrity.
As it is, I'm ok with it because it's an attempt to get/keep the crowd involved in the game. I would guess the players (at least the one's playing) even notice it's happening. I'm pretty sure I wouldn't have in high school, and I would hope they're more focused than I was.