I don’t like how they had four data points, but combined them into only two.

wasting the resources of an animal you’ve culled, it’s absolutely unethical.

Why is leaving the carcass to degrade naturally unethical? Is it better for the nutrients in the meat to end up in a water treatment plant or dumped into a river? Or do you prefer most of the nutrients to be used exclusively by humans?

we aren’t doing enough.

Because a lot of people aren’t doing anything to help.