Three jedi masters
that survived the purge that the Sith Triumvirate initiated, wiped away with one fel swoop by Traya in their own enclave. It is -not- about being a slouch in numbers or the Force, it is proven ability and testimony from the characters. Revan, Jedi Knight Revan, is absolutely dead according to the very definition of Traya's -demonstrated- power.
There's nothing you can do because there is nothing you can present as evidence to the contrary. Her two apprentices kicked her out of the order because they had learned all the could from her, and look at them:
two of the most powerful forces spawned by dark teachings- Inability to die and the ability to devour, to kill the Force, under her command and her tutelage (I am aware Sion's power did not come from Traya but she did further his education and have complete control of him) If they are not clear examples of her power, of her knowledge, and if you cannot imagine just Jedi Knight Revan facing her power, *emphasis* demonstrated power, for which there is no defense, or at the very least no defense that could be known by JKRevan or the jedi under his command, then, I'm sorry, there is nothing I can do for you
"No evidence I can present on the contrary?" Listen; I'm not downplaying her ability in the force. Not at all. I would agree that (due to sever force) that she could likely beat Revan one-on-one.
This is my argument in this scenario: Traya has one shuttle vs Revan and a thousand hammerheads. Not only that, but he is likely building hammerheads due to the endless amount of loot he could accumulate because the rest of the known galaxy is up for grabs.
For argument's sake, I'll agree with you that Traya and her assassin's can board a Republic ship. Now what? There is no chance that they could take out a THOUSAND of Revan's ships before they were killed. Does Revan need to fight Traya one-on-one to do this? No. Here's what happens:
One of Revan's ships is being taken over by the assassins and then someone turns on the alarm. At that second Revan know's one of his ships. What does he do? He blasts it to peices. Traya and her assassins are all dead.
I suppose you'll argue that Traya and her assassins will sneak onto several ships before they reveal themselves. The same thing happen's here. Somebody pulls the alarm and Revan shoot's them down.
How many assassins could you fit in a shuttle? If you are REALLY stuffing it, I imagine you could fit thirty. What happens if each of these assassins are able to successfully infiltrate a ship? Same thing happens. They get shot down. Revan has them so vastly outnumbered. Not only that, but he's a great stratigist. You'll argue that Revan doesn't know what he's doing, but he's used some mass-deceptions of his own. Canderous Ordo says it himself that as soon as Revan joined the war, he started using mass-deceptions. The guy canonically knows this stuff.
What is it that I've said here that leads you to believe I'm ilogical as you've implied?