He sounds a little bitter toward the government and big business there, eh? <grin>
But, truth be told, the transmitter/receiver pairs of all those guitar/microphone/monitor sets were squatting on those frequencies in the first place. Nobody took anything away from them; those frequencies were never theirs in the first place. They were just hiding in the white spaces between bands that exist to keep TV broadcasters from stepping on each other's signal. They weren't meant to be used for anything. Quite the opposite - they were intended to be unused, left in place as boundary buffers to prevent interference.
So, this day's been coming for a long time. It's no surprise to anyone who was in that business. It is to musicians, theaters and religious evangelists, though, since their focus is usually on being creative, not radio frequency assignments and FCC regulations.
It's bad enough that everybody's gotta replace their equipment, but what's really sad is that the bulk of the equipment that's going to be replaced is perfectly good stuff that cost a lot of money. That $1,400 radio set you bought 2 years ago now has the resale value of used toilet paper. But, on the plus side, the newer stuff operates at much higher frequencies and so takes less power to go farther. That means smaller transmitter packs, longer battery life and higher reliability.