The main problem is that the FSS is really naff and the sooner it gets fixed the more people can enjoy the game again.
If by 'improving exploration' FD meant ruining it by introducing an ****-numbingly tedious and inane mini-game, well, then they've achieved what they set out to do, I suppose.
I actually think the probe-golf minigame is worse. The process is totally disjointed and breaks up what used to be a smooth, flowing experience into a constant stop-start irritation.
Getting into position requires dragging deep into the body's gravity well while staring waiting for a label saying 'Out of range' to change to 'Too fast'. There's no countdown or indication of when it's going to change, so you just have to sit and wait.
Then when you've hit stop, and waited for the ship to slow down, you're switched to a totally different environment, with a totally different control scheme. This meant that FDev had to label everything, which I personally find irritating since I feel like I've switched from a hi-tech spaceship to a Fisher-Price activity set.
Now I get to play a childishly simple minigame that, because of the infinite probe issue, is impossible to fail - even when the coverage highlight stops working and you have no idea what's already been scanned. Just keep spamming probes and you'll get there eventually.
Which brings us to the laughably illogical 'Efficiency bonus'. There's absolutely no reason why my scan data should be worth more because I used 5 probes instead of 6, but FDev had to put it in to mitigate making the whole process of scanning a pointless time-sink by making probes infinite.
So now I've played the minigame and I'm sat deep in a gravity well with nothing to do but fly in a straight line away from the planet so I can go off and do the whole exercise again somewhere else.
The worst part about it is that there's no other way to map a planet. At least with the FSS I can ignore it completely, find bodies by parallax and use my invisible old-DSS to resolve them.