Eeeehhhh... I like the idea, but.
Wildlife is not an incidental thing, and it really should never be treated as such. Vanishing of culture is indeed a clear and present issue, but it doesn't exist independently of vanishing of wildlife. As cultures and cultural spaces dwindle, habitat frequently does as well. The presentation of animals and adjacent human cultures isn't supposed to be a huge fork. It's "Animal Kingdom" for a reason.
Does this mean there aren't different things to appreciate, if "nahtazu" wildlife viewing isn't your thing? Of course not. The architecture and artwork are fascinating, and the development of those elements is an excellent presentation of theme development. While the park has such masterworks in store, though, it doesn't stop there. It can't.
As far as the bug movie goes, humanity has been interacting with bugs for ages upon ages, for good and ill. While you're not likely to see a theme park treatise on the damage neonicotinoids do to bee colonies, you can still see something that stands to teach that bugs are worth a second look instead of an immediate stomp. Far be it for me to let an IP attraction slide, but if there's a notion to teach that lesson, Bug's Life doesn't do a terrible job. Rafiki's Planet Watch works much the same way, though with a much more mature presentation on a much broader array of material. It's still using animated IP to teach something about wildlife, and if memory serves, it also teaches more than a little about human interactions with those species.
People who live in close proximity to wildlife aren't independent of said wildlife. Even hucksters trying to con a few bucks from passersby headed to a dinosaur dig aren't independent of the extinct wildlife that's getting excavated nearby. The wildlife will be reflected in the culture, and in turn, the people will have an impact on the wildlife. Making Animal Kingdom all about the cultural presentation loses half the story and takes away some of the deeply important lessons in conservation that yes, even a Disney park can take the time to impart.