Yes, It was to an extent an infomercial for the energy industry, Yet as a teen when I first rode it it really DID feel like you had gone back to the age of the dinosaurs and forward through history, The sense of awe even to this day made the ride 'worth it'.
It was 'infotainment' done well, Even the later addition of Ellen and Bill Nye failed to detract from the ride, and when you finished you ended up knowing just a little bit more about the petrochemicals which got you to Disney and alternatives which we will use going forward.
In it's place we are going to have a ride about an interstellar gang of thieves who occasionally do the right thing when there are no other alternatives. By no means an even exchange for a majestic work of art by Disney Imagineering. All this ride needed was an update on the Dinosaur AA's using modern articulation and let's face it what boy (and a lot of girls) between 8-12 years old does NOT like dinosaurs and it was a great ride which showed what it was like when they roamed the earth.
Alternatively if the kids wore you out it was also a wonderful place for an exhausted parent to take a nice cool nap so the ride worked on many levels to many audiences.