Even worse, that hashed key they are proposing is plaintext equivalent, it has the same access as the password (actually it is the real password, the PSK). And

Even worse, that hashed key they are proposing is plaintext equivalent, it has the same access as the password (actually it is the real password, the PSK). And while for normal passwords there is the argument the password is more valuable because people reuse them, that doesn’t really apply for WiFi unless people use the same password for different SSIDs