I bet that it does, they won't have just rocked up and signed on the spot & everybody on that thing got in knowing that they're about to do something that is on the very edge.
It depends. If the waiver neglects to mention they're using a vehicle that isn't certified, then to my non-legal mind the wavier immediately collapses.
Going on a trip like this is fraught with danger. It's natural to accept there is a risk of death, but it is the operator's job to minimise that risk. If they have played down the deficiencies of the machine, it's safety apparatus etc, then I'd say the surivivors or the families of the deceased (should it come to that) have a case that the travellers would not have signed the waiver if they had been made fully aware of the situation.
i think poor judgment is a fairer assessment
i only think one person on here (and not rob by the way) is not bothered whether they live or die, but you have to question the foolhardiness of their actions after reading the waiver
People do questionable stuff all the time. People often try to stay the night on Hilbre island for example, and often the coastguard have to come out and get them. That costs taxpayers money, mounting a rescue that shouldn't need to be made - because people took an unnecessary risk. Okay, the risk is marginal compared to diving on the Titanic, and they're doing it illegally. I'm just pointing out that you don't have to be a billionaire to consciously take unnecessary risks that can get you into a tight spot.