See I'm more likely to go to a well themed waterpark with average slides than a poorly themed one with great slides.
2 examples; Didn't even bother with Wet N Wild this year, despite it having best slides in Florida. Secondly, I would gladly go to typhoon and not go on a slide but just chill on the lazy river and go in the awesome wave pool.
I'd still call the park a success if say it was Aquatica level theming but with better slides, but it has been commented that we should maybe expect a little more here. I'll still find it enjoyable, I'm just questioning where this water theme park tag has come from.