The name also succinctly states the strongest objection to the idea (noise pollution).
I flew on the Concorde once. I didn't hear any sonic booms ;)
I don't think you can hear the sonic boom when you are traveling above the speed of sound. I think that the sonic boom is only experienced by a stationary object observing the event.
That's the joke.
Startup idea: accelerate paying customers on the ground to Mach 1 to make the sonic boom go away.