Heya! You dropped by stream wanting to know about level difficulty a few days ago Finally got around to it:
I think you have a decent scaling of level however I think there's a lot to learn here - the distance between A and B being so big and the line now counting as a "hit" is pretty rough, as if you don't move in the intended way in big levels you can be "offset" by a pretty huge way and have to spend a ton of time with the slow rotation speed to re-align to hit the goal. I would consider how you would increase consistent and quality of the player having difficulty with the game play elements you want - timing rotations, and lower the skill required to do the dopamine hits - hitting the spot exactly.