Sort of. Not "in" the turn though. It softens up the slipper clutch action in both directions. Makes it not so abrupt as you downshift. Also, from what I understand after talking to Thermosman, it softens up the engagement as you get on the gas exiting. It reduces chases input and should make the bike feel more stable with less drastic weight transfer from front to rear.
Probably not the best description butt you get the idea.
No the springs are definitely for decel... hence why some riders take out ALL the springs and replace with washers. There is even more benefit beside the mechanical modification... you can remove engine braking in the YEC software if you really wanted to get nitty gritty.
One can also replace some of the clutch pack springs with heavier duty ones.
How all these work for the end user requires lots of experimentation & notes. :wink::wink: