I understand it's not impossible, it's just really annoying. I want to see Fdev make some of the other gameplay loops a bit better.Fab idea...!
But its not impossible to stop a ship that's drifting on inertia after you've disabled its thrusters.
Do this. Wait for its shields to max out. Go behind the ship then fly under it and past it about 1km or so. Then come to an abrupt stop. Using the radar screen align yourself as you see the vessel coming towards (from behind you, using the radar screen) with it and it slams into you.
Reverse thrusters now just a small amount.
It won't be fully stationary.
Now wait for shields to max again.
Rinse n repeat.
Get it to 50 metres per second and you can gently follow it whilst deploying hatchbreaker and collector limpets to loot it.