Spinning large aeroplanes
Perhaps the suggestion that you should not get a large aircraft into a spin is not based on the aerodynamics of the spin but rather on the stall prevention systems of stick shaker and stick pusher? To get to the stall, you have to avoid reacting to the shaker then override the pusher and to get to the spin, you need to introduce large amounts of yaw.
None of those actions fall within normal operating techniques.