The scene certainly put a spotlight on the issues that arise when PCs try to get involved in +escape action -- in this case it created a very cool IC scenario, but unfortunately it also made the ensueing fight for the escaping PC - between the two Sith/Republic chars present - seem very unlikely.
One solution would be for PCs to generally stay out of the "+escape stories" for other PCs. At least if the 'rescuer' PC must, at the same time, interact with other PCs in the same scene.
Another solution COULD be - but not sure if the STs agree - to let the 'rescuer' PC deal with the full consequences of trying to help a friend - without getting any bonuses. This means heavy burdening for lifting someone, etc.
If the 'rescuer' PC fails, then the +escaping PC will of course still escape, but must use other means... for instance NPCs. The 'rescuer' PC would then have to get him or herself out of the sticky situation anway! Possibly by spending one of their own +escapes - which I think is fair, since you -are- trying to be the hero and must risk something to be so!
Anyway, just my two-cents