The pilot did not have to fly. He chose to. I make no comment on whether or not that was a wise judgement.
and no one has to get out of bed an go to work in the morning. there's no gun to the head forcing the action (unless you are in N. Korea)
the only things that mandate a 'have to' are breathing, putting a bit of food down your gullet and some water occasionally and sleep.
Why do I suspect that if someone had heard a builder say in humour "nah, no reason to stick a light on the end of that mate, sticks out like a sore thumb"
should it be a builder on the ground's call to make a decision on aircraft safety ?
you'd be calling for heads to roll...
errrr.
you are missing the point.. neither pace, nor Shy Torque, nor FL nor i have called for 'heads to roll'.
as far as i am aware none of the above have apportioned *blame* to anyone at this time, unlike those that seem intent on apportioning *blame* to PB, no matter if the investigation has not been completed.
that is the point.