I personally feel that SWGE is being way over-hyped. Just like Pandora. Granted SW has a much larger fan-base than Avatar, but with only 2 rides and designed based off of the newer movies that long-term SW fans dislike for the most part, I think Disney is not going to get what they bargained for where "packing the parks" is concerned.
DLR was nowhere near as packed as social media made it sound. It was mostly press/media. Additionally, Disney said before the DLR opening that they would not do any marketing and they would allow social media to do it all for them, yet around 30 days after the May opening, commercials for both parks all over the TV. That is telling.
I think they were expecting it to be like the opening of Hagrid's Motorbike, but that just was not the reality.