If it did "break the whole reason for using the new FSS" that would be justification for the ADS being removed, but it doesn't. You just don't fit one (nor would Darkfyre99) and your discovery process remains as it is right now, post 3.3.
The player that chooses to fit one (me) gets an initial reveal of targetable bodies and a populated system map just as before, the rest is covered by the new process including pointing the ship at them and scanning or flying towards them if they are far away. Or using the FSS Scanner Screen to DSS them which would require using the 'hunt the blob' mechanism just as they do now. They would also be using up a slot, and would be carrying the mass & power requirements of the module (as before 3.3).
So the player that goes without identifies and resolves on one go, the player with the ADS identifies with the ADS and resolves either with the FSS or by targeting the unexplored body and travelling close enough to resolve it.
So which part of this do you not like Max? It would be the best of both worlds with no downside.