Simple, DO NOT CHANGE HISTORY, REINTERPRET AND THEN CALL IT BASED OFF OF SOMETHING REAL.
If you think there is a chance that 1/20 of some story might be wrong, get that 1 verified and peer reviewed. You do not need to go on to base an entire 'documentary' off of 1/20 facts.
These reviews and feedback were earned by you. Not by me, or anyone else (unless the said something bigoted). So do not make yourself the victim, you our changing OUR history and collecting a pay cheque.