I'm not doubting that. But until a proven company comes out with a good swaybar intended for track purposes and something that will go hand in hand with EDC as well, I don't think many of the M3's would change.
They need to make something that once installed would also be easily adjustable as a sway changes body roll and the handling characteristics of a car a lot.
I would do it right away if there is proven R&D time on an M3, with a car that has a lot of power and likes to oversteer and power on in turns , they have to get it just right for your average street driver as well.
The suspension is great as it is compared to E46, but I would love the improvements. I think anyday now