Well, it is pretty meritocratic in the sense that if you have enough traction, everything else will be overlooked. Pitching/networking are also skills that can be learned and improved, so that's somewhat merit-based.

But yeah, if you don't have some combination of traction and pitching skills, you better have something else going for you. If you don't, you're definitely better off focusing on traction (merit) than trying to play the decidedly not merit-based game of pitching VCs on vaporware.