It was always meant to be a low-tier "second ride" to relax for the small tikes to enjoy. I totally hear you as I was kind of hoping for something a little bit more than just a B-ticket, but like what someone else said, they worked with the space they had. It was never meant to be a really awesome D-ticket, just a simple kid's ride. It is what it is. Would've liked to have seen a bit more out of it (specifically the indoor section), but they did they best they could with it. And that's okay.
I'm also don't know why people were up in arms about this not coming to Hollywood. It would've offered some more kinetics to an already kinetics-crazy land, but I don't think USH's land is going to suffer at all without it, especially with SLoP.