Everyone is entitled to their opinion, here's mine having seen SiTS and SWaGS
Nothing will ever top SitS, keep in mind that they had to move the launching pad outside the park and that was the only area they could use and that's why they are of centre.
I don't believe projections on the Chinese theater is an easy thing. They have to map out the theater, the recesses, books, Windows, tiles, it's not like it's a flat surface. The fireworks are there to add to the show and yes they are less of them but still very cool.
You cannot judge anything base on videos, especially this show, it's too wide, there are things happening almost all around you.
Let's not get into the "disney is just being cheap" they ate building two brand new lands,
If this type of show is not your thing there are other things to enjoy at Disney. I think the majority of people that have experienced it, love it.