Well that was entirely my point, Van Gogh took a completely new approach to colour, use of light, painting en plein air etc.
People never appreciated him but at least Van Gogh could say he’s doing something groundbreaking and new.
Whereas the artist in question here, I can’t imagine they’ve ever legitimately thought that of their own art, it’s just not that groundbreaking or good.
Maybe they just realise that they’re unemployable elsewhere so they may as well carry on