Given the egos involved. I think can think of a couple pf people who would do it and never get what was happening.I've said for years that a documentary about the people and the psychology of people who make these fan films would make for a fascinating project, if you could get everyone to agree to do it.
Also: if a documentary about this whole embarrassment about Axanar gets made, I sincerely hope it will be called Casting Dispersions.