This is different though because the concept of “design” or “teleology” gets reduced to history by evolution. This undermines the idea that humans can goals either, but if you undermine the idea that humans can have goals, you’ve eliminated the basis of doing science, leading to contradiction. You can bring goals back and say well evolution/biology only has apparent goals but humans really do have goals, but that’s actually a really hard task philosophically!

The bird/plane case is different because to the ignorant, they may only know of birds, but you can explain that there is a more fundamental category of “flying thing” and a plane, like a bird, fits into that category without being a bird itself.

With design you have to say, well there’s design and apparent design and for some reason biology has apparent design but humans have real design. It’s a tricky problem!