Doing an esterfication and extracting something are still two different things. There is no aspirin tree, even if the pharmacological actions are the same.

Sorry this is probably my bad. I should have clarified this in the original post.

So?

No need to be unnecessarily pedantic, you knew what they meant.

When did the "I'll just examine 1 word and be overly pedantic to win an argument" thing start and why?

The day grammar was invented.