your consternation requires you to have a fixed and shared definition of self made that is just not described at all here.
it does leave a glaring hole about then which wealth was not self-made. alimony? child support? having a million now but having inherited ten million?
of course its not people that spent years in debt, worked on salary, dealt with illness in their family, and made millions. that's very rare and life will never be catering to that, so, yes, a life with more options from earning this way is BS and it does keep people motivated enough to continue trying anyway, but that's not what this article was talking about.