This talk of bombardment is foolish at best. If we are under the impression that Revan knows Traya is at Malachor, then Traya knows he is coming.
As soon as Revan's fleet comes out of hyperspace, they begin the bombardment. They aim wildly in an attempt to hit the Academy. Suddenly, the Triumvirate fleet comes out of hyperspace behind Revan's fleet. Caught off-guard, Revan's fleet takes heavy losses as they turn to engage the enemy fleet. But by the time they turn around, the enemy has vanished. But not before Assassins sneak onboard a couple of Revan's ships.
The bombardment resumes, but suddenly, multiple Haamerhead frigates fire upon their allies. The Assassins have taken control of multiple frigates and are firing on the Republic ships. But then the Triumvirate fleet returns. The Assassin ships and the Triumvirate fleet quickly defeat the Republic fleet.
Revan doesn't get a chance to bombard the Academy.
Have I not explained 1,000 times that Revan wins the space battles? Sure this hit and run stuff you speak of is affective, but these aren't tactics that are unfamiliar to Revan.
I thought we'd come to the conclusion that Revan is gonna end up surrounding Malachor V?
But you're right to an extent. Traya's warfare will inflict some casulties on Revan, so he's not gonna be surrounding Malachor with 100% of his forces. But he'll have most of them.