The Watch is pretty intelligent in terms of raising your wrist. For example, if your wrist is rotated toward you, and the screen comes on, and then off, you need to rotate your wrist away again and rotate back for it to come on. This is probably what you're seeing as "a few times when the watch display would not come on."
I've never once had the watch not come on when rotating from a natural position to a look-at-my-watch position, since 1.0.1. I really don't mean to be a doofus, but it really amuses me when people see all sorts of changes that are LIKELY not there, from one firmware to another.
Sure, I only have my sample of my wife's 2.0 Watch to my 2.0.1 Watch, but again - both on the same wrist - ZERO difference. I tested over and over, using fast rotations, slow rotations - ZERO difference.