For those who are unaware: A couple billionaires, a pilot, and one of the billionaires' son are currently stuck inside an extremely tiny sub a couple thousand meters under the sea (inside of the sub with the guys above).
They were supposed to dive down to the titanic, but lost connection about halfway down. They've been missing for the past 48 hours, and have 2 days until the oxygen in the sub runs out. Do you think they'll make it?
I mean everyone says "omg they're crazy", but it's so easy to say that, and all of us have at least a few things that we'd be willing to do that an onlooker could point to and say "lol why do that when you might die".
There's nothing wrong with taking an informed risk, and it's really up to you what kind of risk you're comfortable taking. Most of these people seem to have a consistently high risk tolerance, and three of them were very experienced, so I don't think it's fair to call them "stupid" or "idiots" just because your risk/reward assessment doesn't line up with theirs. If that was their idea of living the best life possible, then that's good for them.
I'd also say that the majority of people in life aren't as happy as they could be because they're too scared to let go of convenience and familiarity. People turn down dream opportunities because it means moving to a different country, they stay in jobs they hate because they're scared of what comes next, they don't travel to places because five years ago someone died there, and they stay in unfulfilling relationships because they hate the thought of being alone or having to meet new people. So if you're the kind of person who basically spends their life on the couch with the same old people in the same old place eating the same old food watching the same old shows and you dream about what could've been, I'm not sure you have the right to lob criticisms at people who chose to get up and do stuff.