You also seem to overlook, that it's not the FSS lovers asking for a compromise, it's the ADS lovers stubbornly rejecting it. And there you are, in the middle of a dead-end road. Good luck to convince FDev with this attitude.
That's not entirely true. It's (a very few) people who insist that there should be a compromise, and for the most part those who would like an optional ADS back are happy to accept one. However, it's not just one compromise, is it? It must have a cost, and a power usage, and mass... It cannot coexist with the FSS... If it were to exist it must have limited range... If it shows bodies they must be blank spheres...
Plenty of those 'compromises' are fine with me, and plenty with others who would like an optional module available. Drew, for example (I hope he doesn't mind me using him as an example) would be happy with blank, targetable spheres, because he wants to fly his ship, not play the FSS game. That would do nothing for me though, because my 'want' for an optional module is to be able to note anomalies that the FSS spectrum doesn't show, and not have to scan a multitude of bodies for no good reason.
Personally I have no problem with the FSS. I find it very fast, very easy to use, never had a problem locating a body with it, but that doesn't help in spotting stellar forge anomalies which might prove to be an incentive for me to explore. I have no other real reason to explore, I got Elite ranking in it almost two years ago, don't need credits. You and anyone else are welcome to think that I am wanting an ADS to make exploration easier, but it ain't so.
There are a number of different reasons why people want an ADS module back, just as there are a number of different reasons why others really like the FSS. Plenty like it because it makes exploration quicker and easier while others like it because they find it makes it feel more involved and realistic. Assuming everybody who wants an optional ADS is just because they hate the FSS, or find it difficult to use is missing the point.