We've been hoisting people and cargo up/down with pulleys and cables for thousands of years. This seems like the smallest obstacle Starship has to face.
We’ve been opening and closing doors for even longer and yet it has still posed a challenge for SpaceX when dealing with the payload door on Starship. Space makes even trivial things hard.
The satellite door is completely different from what they'll need for MarsShip, that's even larger and has to function as an airlock. None of what they're trying to do now matters for the Mars door.
