I have not read the book but recently watched the series on video at my father's place while on leave.
I would make two points ref the TV series,
1/. Magnificient flying by the pilots concerned,
2/. My father is an ex RAF fighter pilot (1950-1953ish) and stated that every character portrayed in the series reminded him of actual people he had served with immediately post war. Particluarly Catermole and Sdr Ldr Rex.
Perhaps the BoB vets who so objected to the series and book found it a little uncomfortably accurate. That does not in any way detract from their great, and well deserved place in history.
Chuck.