I know from experience that nothing ruins one's experience with a new cuisine than dining with someone who grew up with it. Nothing can be right. I have no doubt that whatever food this restaurant serves up would not compare to what the reviewer's Yunan friends's grandma would have made. This stuff is pure emotion for her; for the rest of us, it's dinner.
I happen to have been to Lotus Blue a couple of times and I love their food. I am not from Yunnan and cannot attest to the authenticity of the dishes served up there. But I know I like them and they are not like any other Chinese food you find in the city. They taste like they are made with quality ingredients and with great care, and most importantly, I don't find here the universal"asian" flavor that turn out to be nothing more than compulsive applications of monosodium glutamate soaked in excessive grease, which always make me feel like shit afterwards. The food here is dinner I don't mind coming to back to again and again. If Lotus Blue made this happen by tweaking Yuannan recipe to some modern sensibility, I say it's quite alright with me.