The thing that most attracts me to historical fiction is taking the factual record as far as it is known, using that as scaffolding, and then letting imagination build the structure that fills in those things we can never find out for sure.
Journalists who are devoted to strictly factual reporting take particular pleasure from satirical news outlets that have the liberty to laugh and even mock the hypocrisy that reporters and editors must simply observe without comment.
Every trial lawyer knows what it is like to sit patiently while the other side puts on its case. Inevitably they make a few points that appeal to the jury, and waiting for the opportunity to respond can be painful. The desire to jump up immediately - to point out the flaws in logic or the factual distortions - is often overpowering.
Islam is unusual in that it's the only one of the great world religions which was born inside recorded history. That there's an enormous amount of factual historical record about the life of a prophet and about social conditions in Arabia at that time. So it's possible to look at the origin of Islam in a scholarly way.
In the old days... it was a basic, cardinal fact that producers didn't have opinions. When I was producing natural history programmes, I didn't use them as vehicles for my own opinion. They were factual programmes.