IF he's listing his "Assumptions" on what he heard, then he might not
have heard those stations.

sometimes there's more than one station on the same frequency where you
can only hear the one one day and only hear the other another day.

true example from my loggings (althogh this veers off of shortwave a
bit)

one day, on 162.400 MHZ, I hear only NOAA weather radio. I think from
Castilla, Ohio (spelling?). On another day on the same radio and same
frequency, 162.400 MHZ, I hear only "Enviroment Canada"'s weather radio.

Some days, I can hear both depending on which direction I turn te radio.

On a normal day, I can't hear anything on 162.400 MHZ

My local NOAA weather radio station is on 162.55 MHZ which I can hear
all of the time.