I've been on a bit of an unfortunately typical post-FDev-announcement-disappointment-break from ED but all the better for the sake of the exercise. I just hopped in my metaboi ferdie, went to the nearest Haz RES and picked one from the first wave of spawned NPC drones.
Now this video is demonstrating a lot of typical failings in ED combat: Poor positioning, questionable timing, chasing the reticle with 4-2-0 when I should've already been at 2-4-0 by then, taking fire with 2-4-0 when I should've been at 4-2-0 even though it's just an NPC (that's no reason not to stick to best practices). Yes, also just barely sufficient aim, but I still think aiming on a gamepad is not the decisive factor here. By far the greatest improvements to DPS come from better positioning when the time comes to actually take aim and fire. I still suck but I think I'm at least focusing on improving the right aspects.
I just think it's not a very important goal to be able to make those difficult shots. A better goal is to be able to consistently put yourself in a position where it's simply hard to miss. That makes the input device much less of a concern.