Hinata can't lay a finger on Lee, he's too damn fast without even using the gates. And even if Hinata can see Lee it doesn't mean she can react fast enough to react accordingly. It's all about reaction time, and from what I've seen Hinata doesn't have much of it. She couldn't even touch Pain and I doubt he's as fast as Lee or has better taijutsu. Lee takes this easily.Palm rotation, when she see's him move towards her, if she hits him, he'll go flying then she need only block his chakra points when he's defenceless