The Sunbow shows were rather into this as well, in fact I know one story editor/writer for one of the shows that has said that it was also reversed - they could *not* make a non-Caucasian villain. They were adding a new character to a show and nothing about it was dictated by the toy company (aside from the name, of course - as usual, selected for trademark purposes), so the writer wrote a black villain. This was vetoed, but the notes that came back said they could be international - just had to be English or Australian. So it was ok to vilify other white people, but not anyone who was not of the same color.
It's so interesting how that fact now seems more controversial than anything else, as reverse racism is just as recognized today as the plain-old kind.