That said, the fact that the market is bad, is just randomness and shows one of the major difficulties with relying on investment income to support your life. Sometimes stuff just sucks, for very long periods of time. Meanwhile you must pay your bills.
That doesn't even get in to whether or not these people dramatically underperformed the market. They very likely did, but I also bet some of them outperformed based on luck or skill.
Stock market investing is something everyone should try at somepoint in small doses just to understand how difficult it is. Its probably the hardest way to make money in the world and even the best investors usually have a bad few years which ends their careers.