It's weird because in the books, the Kingsmoot were my least favourite chapters. They've done a good job by making Euron interesting, and I like how Yara managed to steal that many boats. Show's how good of a leader she is when all those people were willing to follow her and abandon their homes.
The ending of this episode opens up so many possibilities that I thought would never be on a show like GOT. Damn, it was so good. People seemed to be more emotional and into it because of how Hodor became Hodor and how he died. However, for me, it was the fact that it shows how powerful Bran is. Look at what he can do and look at how concerned the Night King was. He personally brought his other White Walker buddies, plus hundreds of wights to deal with Bran and the Three-Eyed Raven.