Even if the Laginas are faking it, why would you assume that to be unethical, culminating in a conspiracy? Those guys are entertainers, and their show is entertainment -- it is not a historical documentary to be taken seriously. An NDA for everyone involved is normal for such a show, and the people who appear on it are probably grateful for their Andy Warhol moment. I see nothing sinister going on here, certainly nothing that rises to a conspiracy level.
If you watch a show produced for dramatic or comedic effect you know going in that it's a scripted fiction. They don't have to make a disclaimer at the beginning telling you so; it's understood. The roles are played by actors who typically assume different names from their everyday names. We don't call actors liars because they take on such fictional roles.
TCoOI, on the other hand, has the premise, made implicitly or explicitly, that it is non-fiction. The participants use their own names, furthering the premise. If it turned out they were in fact acting, they would be liars. I hope you don't need me to explain why lying is unethical, 99 times out of a hundred. If no-one should get their knickers in a twist to find that everyone involved is play-acting, then why not just out with it? The answer, of course, is that many hundreds of thousands or millions of viewers take the premise at face value and would be unhappy enough about learning it was fake to stop watching. A profit-motive lie is pretty crass. <-- It feels weird to be arguing from this side to explain why it's unethical when my whole starting position is that there's no evidence supporting the notion that it's fake.
NDAs probably are the standard on many types of shows, and in the case of
Curse, when they are filming in summer and broadcasting in winter, I'm sure one of the goals is to preserve and not spoiler the dramatic effect if they ever find anything significant (but good luck with that -- as I've commented before that would be one tough secret to keep under wraps). And because it
is normal, the existence of NDAs on
Curse isn't enough to explain the lack of whistleblowers among the hundreds who have participated if there were any such scheme (if you prefer that term) of false narrative.
P.S. Some jurisdictions will decline to enforce any part of a contract that is unconscionable, so it's an open question if an NDA would even hold up under such circumstances as are contemplated by our cynics.
--GT