You don't understand the precision required to catch a 70m tall behemoth when you have Earths atmosphere. It's not even close to bringing a capsule to an approximate area, a small ship somewhere with almost no atmosphere, or even landing a rocket on a pad (which we've only had since Falcon 9)
But others are also working on it and showed they can do it too?
brother... we launched and autonomously put a car on mars using a sky crane, now that is damn amazing