Welcome to human nature. We judge things before the final product in every walk of life. Look at how everyone was critiquing the London Olympics in 2012 before the event or how based on the trailers, the internet decided Batman v Superman was going to be awful.
We're going to spend the next ten, twenty, thirty years with this ride in existence, we want it to be as top quality as it can be. For some, they may be looking for things to rip apart, but that isn't the majorities intention. For me, it could be so much better if it was a completely themed facade, all the way round the ride building.