"making the unhinged argument that a poor KDF is a feature because it encourages users to select better passwords."
Where does it say that? It says a better kdf would improve the security of shorter passwords. I don't see anything that suggests a poor kdf is a feature.
The kdf used for "gpg -c" also seems better than "openssh enc". And we've still not heard what the reasonable alternative is for symmetric/password file encryption is. So, I'm sticking with gpg for that use case.
Where does it say that? It says a better kdf would improve the security of shorter passwords. I don't see anything that suggests a poor kdf is a feature.
The kdf used for "gpg -c" also seems better than "openssh enc". And we've still not heard what the reasonable alternative is for symmetric/password file encryption is. So, I'm sticking with gpg for that use case.