Thank you for listening, I appreciate it.
It's a hard thing to explain, but I'll try.
When you have an attraction based on an existing/known IP, you have already developed an emotional attachment to that IP. It can be good, bad or indifferent. With Harry Potter, the reason why people walk into Diagon Alley and start crying is because they had the existing attachment to the property before hand and Universal made it a reality. There's a familiarity there that helps them tell the story.
There are certainly people that have that same attachment to Pandora, but not to the same extent that people have an attachment to Harry Potter or Star Wars. That makes for a significant hurdle when comparing the two areas. Emotion is a huge part of Disney's nostalgia and the appreciation we all get from a ride or a land, but it's often a factor that is rooted more in the source material than the ride or land itself.
When it strictly comes to quality, that can also build emotion but without the previous level or interest it's starting from a lower point. From a quality standpoint, it appears that Pandora is as good, if not better than Diagon Alley, however there is no guarantee it will connect with guests on the same level. That's one of the arguments I make when talking about Africa. From a quality standpoint, it's on par with Diagon Alley, but it lacks that emotional connection with some people. I imagine that a native African may walk through Harambe and get nostalgic. That may create more emotion than that same person visiting Diagon Alley.
So why does any of this matter? In the grand scheme of things, it doesn't. But the reason why Disney and Universal are on their movie based IP kick lately is because when you bring in the emotion associated with an existing franchise you can sell merchandise. In Harry Potter, the merchandise is as much a part of the land as any other thematic element. In Pandora, that's not the case.
What I think people will be unable or unwilling to do is separate their existing emotion, their predisposition to like or dislike something based on an intellectual property when assessing the land. We do that with everything in life and act and opine accordingly.