While I can somewhat understand the theme of dinosaurs could be scary for young children (the Dinosaur themed ride could probably scare some teens and adults), the setup of Dinoland feels a bit "cheap" for Disney.
The themeing throughout the land is set up for a classic carnival type feel, and it does that, but it feels too much like the typical "amusement" park that Disney is definitely not.
Primeval Whirl adds to this feeling with an almost tacky design layout. That being said, if this was in a Six Flags park, it would be one of the best themed rides around the park (not saying much for most Six Flags rides).
The ride itself is decent for a spinning wild-mouse design, but I still feel like I am anywhere but at Disney when I am on this coaster.