Reports are now indicating that the model shown there is, in fact, the Disneyland version (the logs are single-file seating, which should have tipped us off), and MK's will omit the water tower in favor the boat in the tree as seen in the original concept art.
I don't particularly like the water tower, so I'll take that trade-off if it's accurate.
There's a distinct lack of conflict in that synopsis for a semi-thrill ride. Not every ride needs to have strong conflict per se, but when I think of most of my favorites (including Splash Mountain), there is usually at least some kind of antagonistic force, and it would have been nice if the new ride's story was hinting at such intrigue.
As it stands, it doesn't sound like much thought has been put into it beyond "Make sure we check all the boxes of all the characters we think guests want to see." Which borders on a kind of laziness that reminds me of Frozen Ever After.