Yeah if you'd do something stupid, that would suck. Like being me in 2017 and losing almost 9 BTC on a paper wallet due to a flooding and not keeping copies.

But consider this would be global, not due to a mistake you make, but due to a bug. The reason why I think this LARP is important is because it's good to know that no system is infallible. We can only hope that with all non-evil players together we catch all errors before they get exploited (preferably: released.)