In view of this apparent disparity, what do you think the reaction of Castro
would, or should be?

And, all of this goes way back to 1939 ... long before Radio Marti.

Since the other four NARBA-signatory nations appear to have no trouble obeying
restrictions they agreed to 65 years ago, Castro ought to stop acting like a
bully/crybaby and attempt to negotiate something better for his country.

Oops, forgot: Castro is a Communist, and the other four nations won't
negotiate squat with him. There goes that theory.