those complaining about Gendry teleporting to eastwatch, it had to be a couple of days before the lake was frozen enough to support all those wights. Plus I don't think they've been carrying around those chains. They were clearly leaving when Jon got out of the water. Go get chains, come back, fish out a dragon = more passage of time.
Also I'm confused on the hate of the Winterfell girls. Their actions and dialogue seem well in line with how they've been written so far in the show. Arya, for all her training, is still the same child she was in season one. And Sansa, with all her experiences, still feels like Arya is trying to ruin her life. It's the same reason people hated Danny Rand in Netflix Iron Fist. He acted like a dumbass because he still saw the western world as a 10 year old would. Sansa and Arya are back home where they were immature brats. Those feelings are surfacing again, only now with greater consequences.