I noticed an improvement with the scrolling instead of selecting as well. I have only had it select instead of scroll once since the update. I could just be learning to touch a little harder on the screen when scrolling, so it could be placebo for me too, although I just tried to recreate where it would usually mess up and it worked perfectly every time
I must say I have been very impressed with this phone, and how quickly the updates and improvements have been coming. It has been a good introduction to a windows phone for me after years of being with Android.