That means, you need to switch controls in game..I already do it for SRV driving I tried SRV with HOTAS I did not liked it...so I switch to K/M for this after I land on planet...
Depends on the specific setup, but in general, you're right.
A HOTAS with a Mini stick on the Throttle combined with a set of pedals like the MFG Crosswinds is terrific for SRV driving. The "toebrake" of the Corsswinds easily double as accelerator and brakes, while the mini stick does the steering (not much different from a controller stick) and the actual joystick is only used to either control the turret or pitch/roll during "air" time. Paired with a CH products HOTAS in my case, it makes for a great setup. :3
But that's a rather expensive pleasure and sure enough, if there is to be on foot gameplay both in SC or Elite, I'd be switching to mouse+keyboard, which are always at the ready anyway (or a gamepad, if I ever get a VR headset).
I believe this is whole reason why FD never rushed towards going nuts about space legs. They want to do them, but they are extra, they are additional gameplay. If you don't want to leave seat of your ship, why would you have to? For once, I can agree with those who argue that you need very compelling reason to leave that chair.
Apart from this minor time thingy and the fact they may not have even managed to get the available content around the 2014 release done, if they also had to implement the whole FPS portion by then.