Sorry, but you are still missing the point: Mere explanations for natural history do not amount to a practical use; explanations are just theories - ie, talk. For example, the explanation of how whale (supposedly) evolved is as useless as a fairy tale. Applied science relies on facts, not useless stories about what might have happened in the deep past. Moreover, evolutionary explanations for natural history are almost always untestable, making them doubly useless.
I’m not arguing about what’s “important to biologists” - I’m arguing about what’s practically useful to biologists.
Applied science relies on facts. Curiosity is not facts.
No, I’m not - not even close (nice straw man, btw).
Are you saying Darwin’s tree of common descent is knowledge?