I just want to put out a not-so-hypothetical example.
Deaf West Spring Awakening was on Broadway for just a few months. There was no cast album, because half of the cast wouldn't be able to be represented on the cast album. Andy Mientus has said that the cast tried the entire run to get a filmed production so that the show could be preserved - and yet it didn't happen. And on top of that, there was no tour of the show, even though one was announced. Multiple actors from the show have mentioned that they've watched the bootleg of the show available on YouTube.
Now imagine someone gets into Spring Awakening specifically because of this cast. Let's say they saw Alex Boniello in Dear Evan Hansen, or Patrick Page in Hadestown, or Sandra Mae Frank on Zoey's Extraordinary Playlist. And they want to dive deeper, but they can't, because the only record that the show was on Broadway is a Seth Meyers performance, a Broadway.com vlog, and a Kickstarter-funded Tony performance.
Then they find a bootleg on YouTube.
Now what?
I don't want to prolong an argument, because there are much more important things to worry about right now. And I know that each person on this board has their opinion on this issue, and one post isn't going to change that. I just thought it was an interesting example, one that has solidified my position - as an actor, writer, and lover of theatre.
"I think that when a movie says it was 'based on a true story,' oh, it happened - just with uglier people." - Peanut Walker, Shucked