It can be disconcerting unless you're prepared for it. The state of the roads means I see it fairly often around here, especially in the spring before they've filled the winter created potholes. I've driven the car long enough to where I can generally anticipate it will happen.
The regen will be adjusted when a wheel slips, the speed changes on a wheel more than the others, and when going around a sharp turn. There's all sorts of little things the car does that should make it more stable that people may not really notice as most of them are in the background. I find a close reading of the user's manual periodically helps to get the most value out of the car when I read something and say...I didn't know that! There's lots of stuff you miss the first time through. Lots of little things many people complain about that if they'd read the manual, would find out the car can do, for example, the charging port cover has an indent that will let it hang on the door opening hook...it won't stay if you try to catch it by the end, or anywhere else, but in one spot where there's a pocket designed to catch on the hook...have heard lots of people complain about that, but it's in the manual. Had an acronym in the army - RTFM...you might guess what that stands for...(read the F* manual).