That thing was not even sea worthy, much less capable of safely navigating to 12000 feet. They knew that, but at a million dollars a trip, the owners were willing to take a risk that the passengers were not fully advised of
Like I said shouldn't have the billionaires had an independent study to check for safety, it's not like they couldn't afford it..
It doesn’t matter. They were defrauded.
And criminal negligence voids any waiver.
I doubt if this company had any liability insurance ( I cannot think of any insurance company that would have written a policy for this company) so suing it will only cost the plaintiffs money. They will never see a dime. But their attorneys will gladly take their money.