I, too, have taken both the Mavic and the controller apart (check my posts in the Mavic reverse engineering thread).
After I saw the internals, I decided to stop removing the sticks. Pushing the sticks down requires force, but there's no way to give support for the socket or the connected parts at all. Your only way to have leverage is to push back with the whole controller, essentially forcing the external components inside the controller. Doing it a few times is okay, the controller is well built, but doing it every time you pack it isn't a good idea. At least I wouldn't recommend it.
For now, I'm gonna stick with my 3D-printed stick guard (credit to Hovership on Thingiverse)