That's not... entirely correct.
You see, my joystick has an optical sensor on the grip that is used to detect whether a hand is on the stick or not, and from that data, whether or not to use the force feedback mechanism.
While I take my hand off the stick, it will keep thrashing from the game until my hand leaves the zone covered by the sensor. When it finally stops moving, the stick is invariably stopped at one of the extremes on its axis. Eg, pointed full forward, backwards, etc. Translation? For my chute on the ground, it is MOVING. Seeing as how I cannot .ef when moving without getting the 'You must be stopped to exit' message, I need to sneak up on my joystick from the side opposite of the sensor and surprise it, pushing it to something near the center. This in itself is a chore, because my joystick, like most force feedback joysticks, does not have a centering spring, so I have to play with it, often for as much as half a minute before it is centered enough that I can .ef
The workaround you suggest, therefor, is unacceptable in any real sense. Just because my fellow silent FF players and I can do this does not by any means imply that we should.
If I were a more suspicious man, I would guess that the stick is being instructed to act as if the pilot were still in the airplane they have bailed from. This was the case in early versions of Warbirds where you could actually FEEL your plane hit the ground while you watched it from your parachute.
This should be fixed. There is no reason for the stick to be programmed to thrash about so violently when a chute is sitting on the ground (or falling peacefull to earth, for that matter).