Indeed. When I'm in combat with my Bird-of-Prey, I make it a point to pick out those "semi-stationary turrets" who just sit there unloading their cannons on my allies. I see engaging such targets as part of my escort-duty. :p
Which is exactly a good point Escorts are in essence support ships for Cruisers they are there to keep other Escorts off the Cruisers back so the Cruiser can concentrate on other Cruisers.
Yeah, cruisers are tanks. In turn they get up close and take the brunt of the attack while the escorts either keep other ships at bay or (as in most cases) attack the primary target without taking a pounding
Right now it's the closer we are the more damage we deal. This should be overlooked again. As an Escort captain i can't afford to slow down in order to stay at 6 Km or less to the target. Losing almost all of my defensive bonus means certain death with multiple beam arrays painting my hull. Cannon Rapid Fire is still active when i have to turn away and without i am useless until it's ready again.
The only thing that should vary with range is accuracy, that would make perfect sense.
You just need to time it correctly, on the right ship and on the weakest side of their shield, hit evasive manuever, ride in to like 1km, cut engines, dump everything (meanwhile use emergency shields/RSP/Brace for Impact/Shield Battery + attack patterns, and they go poof.
If you do it right. Then you get healed by your team and run.