number of games made does not correlate with game-making skills. They aren't coupled, anyway. It is probably much more correlated with game
design skills, but that's not the context, here.
Their skill in honing the game and becoming a respected game development company are what are in question, and while not an AAA studio, they are recognized as a company that knows how to highly optimize their game.
They deserve as much respect as any other game developer, in my mind. Their approach is different than other game studios, and that alone is testament to their abilities to both make a game and run a business. They're doing things their own way, focusing on the one game (at least as far as we know) and they are still simply "killing it" and I mean that in the very best way.