Not exactly. It was the Republic fleet along with Revan's ability to lead them that made them dominant.
I'm being very serious to say that ALL that Traya has to do is sit on Malachor and she wins. Revan can't bombard her forces, he can't starve her forces, he can't fight his forces ('cause his own will go insane), and he can't beat Traya herself because she's in a nexus of the dark side.
Which means Traya wins. It was inevitable. Per Kaggath rules, Revan must engage her. And if he does he will die. Or Traya makes him her apprentice. Which still means she wins as she has taken from his power base.