So you agree it was perfect terrain for cycling.
But believe only Bamber couldn't cycle in outside darkness where he lived & worked. Compared to thousands/millions of other people who lived in Goldhanger & other villages.
Are you familiar with the road route. I am sure you are.
Do you accept that the long main road is rural.
Cycling that 2am, when surrounded by fields and not natural lighting is hard enough.
Also running the risk of getting hit by a car.
Accept of course the traffic would be next to none at that hour.