From a gameplay perspective the new process feels disjointed and tacked on in a way that the old one did not.
And I guess that this is why we will never agree. For me the new process, while taking you out of the cockpit mode, feels a bit like the StarTrek scanner.
And while we're at it: if the FSS should be an in-cockpit thing, then the galaxy map, the system map, squadron management, PP screen, etc. also should not be separate screens. People don't complain about the galaxy map and system map taking you out of the cockpit. Why is that? The only explanation I can come up with is: because it already was like that during the beta, so they are used to it.
Anyway, while the old ADS always felt like a placeholder to me. It always was like "press button for a few seconds, we will add gameplay later" to me. So for me feels more integral to the game than the old ADS. By far not perfect, still in need of several improvements, but more integral to the experience of flying a spaceship than the "press button for success" of the ADS.
But yes, I guess now we're down to "this feels better to me while that feels better for you". We again have to agree to disagree here. Feelings are hard to back up with facts, so I can just stay with "FSS feels better to me, although it still could use some work".