[Spaceships] Does Soft Landing system require a Control room?

[Kale]

Originally Posted by Peter Knutsen

Yes, that is important to understand.

Also the Soft Landing Syste is 5% of the ship's mass, or the pod's mass, so it makes sense that there's room for some sort of maneuvering system: a few jets or control surfaces.

I agree that soft landing would have some basic maneuvering capability. You would need this to line up for re-entry and keep the craft oriented the right way.
A Control System, however, would give you additional maneuvering capability as well as some kind of navigation computer. Also don't forget that Control systems also include basic sensors. The extra thrusters, nav computer, and most importantly sensors would allow for a more accurate landing than just the soft landing system alone. That said, if some sort of radio beacon or GPS was available I would allow a soft landing system to be more accurate. On the other hand, if no such landing aids were available then having a sensor suite onboard would make all the difference for finding your landing target zone.