I mean, idk about you but when I pay money to see a musician showcase their music, I kinda of expect them to, you know, use that skill. It's why I'm here. If I wanted to hear a recording, I could do that on my own. I dont need to see the musician dance. Or be super well lit with a AAA light show. Or have choreographed anything. Im there to see the musician do the musician thing and play the music. If you can't do the stunt or choreography while performing, it's a poorly designed stunt or routine.

And yeah, when the body is unwilling the show gets canceled. That's the way it works. Or if they're part of a larger set, they may just get replaced. I'd rather deal with that than show up for essentially an overpriced pre-made DJ set. Had Black Sabbath get replaced by Judas Priest for a show I saw. Couldnt be mad, Ozzy was having health issues and i bought the tickets like 10 months out. Not likeq the band or promoters thought it was likely. And if i got there, and they said "Hey guys, Ozzy couldnt be here but heres the rest of the band with some vocal tracks" I'd be pissed.

It's a rough job being a touring musician, and fans undertake certain risks when they get tickets. It's not a company with 1500 employees who can call someone else in when someone is sick with uninterrupted service. It's at largest a small group of individuals who are each integral to the main service being provided, working a very stressful job. For singer/songwriters it's a person. Expecting the consistency and adaptability of a large company from a small group of individuals is just setting yourself up for disappointment. Support the artist, but recognize they're just humans and be understanding when shit happens.