Have you ever spent $50 to see someone perform and try to capture the moment, only to have the jerk you spent $50 to see yell at you for not experiencing things how they see fit? I actually have several friends who have bands, and I can tell you they'd be more than happy to have 10,000 cameras flooding them onto social media. Further more, art and general aesthetic response is subjective. Art isn't even about the audience per se, though artist and audience can blend those lines. Of course, I don't think grumpy musicians are generally reveling in meta-art the moment they tiss fit about cameras from stage, though I'm sure at some point a clever artist will play those strings.
I am a god!
The audience in the palm of my hand,
Moved by my every word,
Swaying to the rhythms I command,
I am a god! ...
Wait, what are you doing with those cameras my worshipers!?
Put those up you plebeian scum, I am your god.
Put those up so you can worship me how I see fit!