Some might say that the addition of the toons to tiki room was an attempt to 'adult it up' a bit, with their double-entandre and inside jokes.
For those without kids, I could see how these new kiddie-type rides like pooh, stitch and the pooh playground might not seem appealing. But when you talk about Walt's initial goal for the park: a place where families have fun together, all of these new additions fit that goal. My dd, dh and I enjoy pooh, and it is a joy to see her reactions. We all play together in the playground, and its a cherished memory. Character meals together are one of our favorite things. When she is older, I am sure we will enjoy Stitch together.
These attractions are not just for kids- they are for families! And that was walt's goal, a place where families could have fun together.