Well honestly, most of the reviews I read when it first opened were pretty negative. No shade on the long walk on the pier, flies and inadequate seating in the dining areas, erosion making the beach areas in front of many of the expensive cabanas unusable, etc. It's great that you love it! Happy for you. But some folks do sail for the ships (just look at the Adventure's current cruise to nowhere out of Singapore) and it would be great and very reasonable, in my opinion, if the major advertised amenities on these very-expensive-relative-to-their-peer class ships were running from 9am onwards. Especially since they close the kids clubs until 3 on island days.
It's wild to me that anyone would want to argue against that given the prices we pay, but some people will cape for Disney no matter what like any criticism is a personal affront.
DCL could absolutely afford to keep the waterslide open in the mornings. They're not Dickensian orphans begging for change on a street corner.
In any case, I've gotten good feedback from other people on this thread about why they've chosen to go to
Lookout Cay or stay onboard, so thanks to those folks!