The challenge is that there's basically three ways to "do" dinosaurs in a theme park:
1) here are dinosaur skeletons/statues
2) we're sending you back in time to see dinosaurs
3) we've brought dinosaurs back to life
3 is for all intents and purposes out for Dinoland because that's Jurassic Park. The majority of the pre-Chester and Hester's Dinoland covers 1 (Dig Site and the walking path, not sure if that's still there) and 2 (the ride). And for as contrived as it is, a lot of people within WDI will argue that Chester and Hester's is well-done for what the design intent was.
Personally, while there's the obvious thematic issue with the overall purpose of the park, the upside I see in Zootopia is that they'd be building a land that is an established place as opposed to what they did with Batuu - building a Star Wars land that had no connection to any place seen in a movie. A Zootopia land benefits from it being "that place where animals live and work like people." I don't have Disney+ to see if Cars is in the top 10-15, but that's another one where Radiator Springs is a place that can be built and just speaks for itself as a land.
The issue is less the kids being scarred for life and more parents filling out surveys about the ride after their kid loses their mind over a 20 foot tall, angry dinosaur making loud noises. Same way the Alien scene played a big role in the Great Movie Ride going away.