I rode it today. I may have caught the ride at the right time but it was pretty clear to me when we had shrunk and why.
In the former splash mountain, where you see bear bear's butt and he says "there's nothing in here but bees" and you do that little dip down but rise back up, that's the part where Mama Odie shrinks you. After this part the frogs become gigantic. Up until this part the frogs have been small but now you're the size of a frog so they're big. While you're small you find some additional critters to add to the band. They might be small but if you dig a little deeper you'll find they're just as important And they too can really play.
So now you approached the main lift Hill from the former splash mountain and here's where Mama Odie returns you to normal size And just for fun of course you drop back down the other side of the main lift Hill. You then go to the finale scene where you see all the critters playing together including the frogs that are front and center but much smaller than everybody else.
Overall I liked the attraction. And I didn't expect to. I kind of expected to hate it. I didn't miss Dr facilier.... Instead I found myself enjoying the clever way that we were shrunk down and then returned to full size.
Some of the automotronics were more rudimentary than others. Some were quite advanced. But all in all there was quite a bit of them throughout the attraction. Not as many as splash but way more than anticipated. I stopped counting once we got past 24.
Disney said there would be dozens of new audio animatronics and at one point I thought that as long as they have 13 they can technically get away with using the plural sense of the word dozen. But once I hit 24.... Then it was quite literally dozens of new audio animatronics.