I don't agree that it's a good practice, I'm simply quoting one example to you since you mentioned you were not aware of any. IIRC, you can find many GitHub issue threads on the Cython repo where they go into more detail. It has been a while since I spent any time thinking about this so the details are no longer fresh.

Unfortunately, suggesting that users improve their runtime environment is frequently a nonstarter for different reasons. (One obvious reason: users either don't have time or technical experience to do so.)