In addition to those reasons, during EMP NEMP, HF with Morse code will still be serviceable if they have tube transmitters/receivers. I have been out of the loop for 20 years, but even then it was rare that sending Morse code is taught.
As I recall, the last service to hang up Continuous Wave/CW (Morse code) operations in both MF & HF was the USCG. It was 1994 or 1995. The Coast Guard hung onto it as many shipping concerns internationally still employed CW on their ships. The Coast Guard was very good at it.