Perhaps we are a little different, but we were expecting a lot more aquariums at San Antonio. It was pretty much all rides and shows. If that is what your looking for (as many people are) then it is great. If you are looking for something more like an aquarium with rides and shows on the side, you are out of luck.
I agree with the insufferable "Gaia Worship" messaging being over the top, but I think we have been to enough zoos and aquariums that it has lost it's effectiveness. We are numb to such attempts at manipulation.