Is it really? The guy is making a living thanks to his own personal project and it's bad he's not a millionaire, especially since you note his revenue might not be limited to his Patreon only?
He might earn much more in the golden handcuffs of a FAANG, but his is a pretty incredible scenario by all metrics, especially if you consider the reality of the whole job market, not the SV niche making millions a year working at Google & co.