I get the general call to action that those who have excess resources should leverage that to take big risks, but this really undersells the possible consequences of losing everything you own. No, you don't always keep your network and skills. Sometimes, you lose everything. You lose friends from fallout or you belatedly realize that your network isn't as resilient to you becoming a penniless loser as you thought. Sometimes you go into debt and make enemies. Sometimes you become homeless and then develop a mental illness or a drug addiction. Sometimes you skip the homeless part and just commit suicide [1]. How many people can stomach that kind of outcome?
I do like the general message which I think should be said more often but I feel like people who charge ahead on this call to action should also triple check that they can truly accept the actual risk they might incur. I also think the amount of risk you take has diminishing returns. Making "fatal leaps of faith" doesn't seem to be as necessary or pragmatic as it's presented here.
[1] (heads up: this is a link to a suicide note) https://archive.fo/QaLIw