But it seems everyone wants free stuff. Sorry, not going to happen in any lifetime. You are going to have to put out some effort for it. That's just the way the world wags.
If you compare the two systems like for like, then the idea that the FSS is 'more effort' just doesn't stand up.
You want to know how many bodies are in a system. With the ADS you'd have to count them, the FSS tells you in the top right corner.
You want to know if there are 'valuable' bodies in a system. With the ADS you'd have to check (by zooming in and listening to the sound signature) as many valuable bodies look very similar to less valuable bodies. With the FSS you can see at a glance whether there are valuable bodies by the position on the spectrum. If in doubt move the tuner over the signal to give you a definitive answer. Much quicker.
That's just honking either an ADS or the FSS. If you want to now scan bodies then obviously the FSS is much quicker, and if we want to be tied to the idea that to get something should require effort, then I humbly suggest we petition FD to drop the auto scan feature and also the feature whereby simply honking the FSS scans all stars in a system, no matter how far away they are. Less effort isn't possible.
While I accept that some people hated the idea of having to fly to each body to scan it, it's fair to say that it definitely required an effort, mental if not physical, to decide to fly to an ELW that was hundreds of thousands of Ls from the primary star. No effort with the FSS, just tune to the identified ELW and pan around the system till you find it. Seconds rather than minutes.
Personally I don't find the FSS requires much effort to scan bodies. I accept it's hands on, I accept lots of people like it because it doesn't require the aforementioned effort of flying to bodies, and I wouldn't want FD to take it away.
But the idea that using the FSS requires effort or is somehow challenging or difficult? Sorry, just no, that idea is simply not true. And again, for those who think I'm insulting the devs (or people who like the FSS), it was they who said that the FSS would be "intuitive, easy to use and quick".
An optional ADS would give nobody but those who either cannot use the FSS or those who don't enjoy using it anything at all, and would at least let them have fun with exploration. Well, that's not quite true, it would give those looking for stellar forge anomalies a way to find them without having to scan the whole system first. And with 400 billion systems and not very many stellar forge anomalies, I don't think that would be to the game's detriment.