Maybe, but Brands is a pretty good player, I don't know why he's not better actually, seems like a top servebot, Frank isn't at tour level anymore, Marti could have caused him problems too.
Brands is a good server but not an elite one. He hits the ball hard, but makes errors. And he's not that fast nor that great a volleyer. Sort of a limited player.
Frank isn't what he once was, but when you're 5-2 and *5-3 40-30 match point, and you DF to lose your serve to get broken, that's a major failed opportunity.