This is my worry as well. I was hoping since the time-line is so.. flexible that Northern Ireland would be covered next season, but with Wilson already out of office that doesn't seem likely. Maybe Bloody Sunday will get a mention in passing.
I see a pattern of deference with British writers who apparently want a "Sir" or "Dame" honor to their name. Daisy Goodwin pens the fairy tale "Victoria" and Peter Morgan seems intent on showing how "normal" the royal family is. Meanwhile a rich field remains unplowed. For laughs he uses the unsophisticated hillbilly cousins across the pond, which can be funny, but only if there's a kernel of truth to it. To me LBJ was funny, but the astronauts? A swing and a miss. Same with the Kennedys. They'd be funnier to someone who already held those views which have been around since George III was in diapers, so I think it's clear who the real audience is that he caters to. He did receive a "CBE" but from what I understand that's a Commander, not a Knighthood, and doesn't get the "Sir". Not yet anyway.