I used to think planet landings were the thing when it came to space simulations, however games like Elite Dangerous and No Man's Sky have showed that they actually add little value in the game. This is mostly because it's hard to create interesting content that make planets a worthwhile endeavour. There is simply too much space on a planet that you could fill with something that keeps you engaged. So even if you could mod this in, I really doubt it would bring the game forward in a meaningful way. It would be a cool tech demo, of course ;).