The rapid steering movements are when you're going really slow. There's no immanent danger. You have plenty of time to intervene in the unusual event it doesn't actually follow the correct path around the turn. After all, the steering wheel movement is because FSD is trying to diligently follow the path.It should be top priority.
Because - as we have discussed in this thread so many times and in so many ways - you can't tell if the car is doing the right thing or is about to do something bad, if it keeps jiggling the steering wheel. Steering wheel movement gives tactical and early information about the intent of the car, which we should use to disengage if something bad is going to happen. Afterall this is beta and Tesla wants us to very closely monitor and intervene. How can we monitor and intervene when the intent is not clear early ? Currently we are all taking a big chance to let it jiggle and then move. As others have indicated - they just disengage if the wheel turns the wrong way.
Its relevent to figure out the context before asking stuff like - "do you know all this is new tech?!".
When you are up to speed and the path planner wants to put you in the wrong place suddenly, that can be dangerous.