One of the things a creator can do as a service to the audience is let them know when it's safe to whoop, holler or applaud.
Often, we hesitate to spread the word and recommend something because it doesn't feel safe to do so. It's better to say nothing than it is to feel stupid.
Joining in on the standing ovation at the end of a Broadway play isn't some sort of callow sellout. It's actually a tradition that offers solace for the timid or uninitiated. Same as flicking your lighter and shouting for the band to play Free Bird… no one ever felt stupid for cheering for a hit when everyone else was doing it as well.