If you meant this one:
Then it’s different because your suggestion is about making them disappear once they leave a multiplayer game. Fractorial’s idea is to make them so that only the player who have them only can dock them and not others.
By nature, I don’t like taking something that belongs to someone (unless if they’re fine with it). Satellites (of the host themselves, or other players) in multiplayer games are an example in this case.