When the game is primarily about flying a spaceship, I prefer my gameplay time sinks to involve doing that rather than instead of it.
If we're on a completely blank slate, then I wouldn't have come up with the FSS either, but with some basic principles in mind, the result would have been along the lines I suggested of how I'd like to use what we ended up with.
Reduce the system reveal of the ADS but still provide enough information to enable the informed selection of bodies of interest for navigation and targetting purposes.
I'd potentially have made the primary body scanner mechanism probe based - fire at any target in the system with a faster than ship SC acceleration to get to targets faster than you could fly there and reveal the level of info that the FSS does.
I think I'd have made the surface scanner ship based, detecting the signals of interest below you from orbital cruise level to within an search area that you would then have to descend towards and investigate using something like the Pulse Wave Scanner to resolve the location more accurately.
The System exploration path would then be something along the lines of:
- Honk
- Review System Map - black body level reveal most likely
- Fire probes to targettable bodies of interest
- Use their flight time to fly to the nearest 'interesting' body.
- Surface scan by orbiting
- Descend to surface flight to investigate.
By then your probes should have told you more about other bodies in the system.
Investigate as you see fit.
Next system.
The key principle being that all the active gameplay is cockpit based, with the exception of reviewing the results.
The second being that the new systems enhance the previous ones by splitting the exploration into more layers and it's more like peeling them open one at a time.
System Reveal - to a certain level that lets you choose bodies to investigate (by probe or by flying there)
Body Reveal - to a level that let's you decide whether to actually go there
Surface Reveal - involving active flight
The current FSS implementation is more like a jigsaw - you don't know if the picture is interesting until you've already fitted in all the pieces.