The Jedi seem determined to burn thrusters the wrong way and make their situation worse, not that there's any reason a starship should begin to fall from orbit just because part of it gets blown up anyway.
Careful here. Yes, if you are in orbit, in other words, moving around the planet at a velocity and angle which fights/balances the planets gravity towards it's surface, having an engine die means just maintaining you relative distance above the planet continuing to orbit.
However, if you are maintaining a surface geostationary position above the planet using some magical antigravity device while not located in the geostationary orbital plane, once that device is turned off, you will begin to drop like a rock.
It is the same for use here. if we shoot a rocket straight up above the ground to the orbital altitude of our current international space station, once the rocket runs out of fuel, the rocket will decelerate, then begin to drop like a rock as it does not have the angular velocity around the earth to counteract the Earth's gravity.
To stop your rocket which was stationary relative to the ground from falling, it would have to go 35,786 kilometers above the equator where our geostationary satellites are located. That is the one magic altitude above our equator where you just magically stay stationary above the ground below. The altitude of our international space station at 408 kilometers is just way to close and if it were to stay above one point of the Earth relative to the ground, at 408km, it would drop like a rock and without it's current orbital speed, it would not burn up in our atmosphere where most of it would reach the ground.
I know in scifi they always say their ships are in orbit while having/using their impossible magical antigravity drive to be much closer to the planet and still stay above a certain land mass (IE: military point/target of interest) just illustrates the writers using the term 'orbit' to mean something a little different than in our reality.