If three year olds like it, then it has something going for it. I would assume a decent amount of children will like it. One ride out of the huge number there are at Disney world that isn't as thrilling as you would like isn;t a huge issue. You're not the measuring stick for rides.
Just because you don't like it, doesn't mean it's wrong.
Is 3 year olds liking it the measuring stick? And how many 3 year olds like it? Where is that study?
Point is, we can look at attractions and question/discuss whether or not it meets the expectations of what an experienced guest to Disney has enjoyed over decades. As I said, if 2 new attractions are being built, it's disappointing this passes as acceptable.
As an example, DHS got 2 new rides in an "area" during the mid 1990s. They were Tower of Terror and Rock N Rollercoaster. Sure, these are different target audiences, but just look at the dollars spent, scale, theming, queues, detail, physical structures, etc. These are objective measures we can discuss. My contention is that BOTH of the 2 new rides got minimal theming, no indoor queue, no indoor attractions, already have peeling paint, no discernible "theme," no pre-show, no post show, are very short, and don't even have air conditioning.
When you're building a an entirely new land, there are minimums I'd like to see as a paying guest. 3 year olds don't pay for Disney vacations, so parents need to be impressed too. I am not.
If you feel differently, point out some reasons that it's a solid attraction other than "kids like it" and we can have a more meaningful discussion.
. I rode these, a good 56 years ago, at DisneyLAND 
