To anyone who has not seen the movie, don't read this post.
I saw your post, and I was going to reply, but I didn't want to give away any of the movie to those who haven't seen it. I can see what you are saying, and I can see Disney doing essentially what you present. However, it could end up just being a shoehorning in an IP just for the sake of an IP. E.g: here is the history of innovation as presented by Joe Gardner and 22.
Also (and more important), purpose and spark are not the same thing. That's the point of the movie. It wasn't about 22 or Joe finding the one thing that set them apart or gave them purpose. Instead, spark is simply the enjoyment of life. So, a ride where Joe and 22 narrate the various purposes of humanity would be cross-message with the movie itself.