Ok, there are some assumptions here that are slightly off track which if I may I'd like to just correct briefly - others I'll leave to those more in the know than what I am .
First off, Aked I would be really interested in watching the interview you describe if you can remember where you might have seen it - thank you.
Secondly, yes, the aircraft suffered a stall but there is discussion ongoing among people who know about planes, as to where and what kind of stall it suffered and more importantly, why.
It's totally possible that the pilot was subject to a 'grey-out' as it's known, whereby you're pulling so many Gs in a mavoeuvre that your blood supply drains into the lower half of your body and you lose spatial awareness/orientation, if not consciousness, briefly, and this can throw you off in terms of where you are and where you're heading.
It can happen to anyone, not just older chaps (and he isn't that old at 51). (the pilot is in a medically induced coma at present, just for those who might have wondered)
It was very very clear from watching the footage from various angles that he was not in complete control of his aircraft towards the point of impact, but though he was probably doing his best in the few seconds from top of loop to ground to avoid hitting anyone.
The crowd was quite some distance from the carriageway; there has been speculation he was trying to put it down in the bushes/trees alongside but did not manage it.
There was an ejector seat in place apparently but when in a situation like this a good pilot will probably try and wrestle back control to the last instant if he thinks he may be able to avoid hitting people, rather than abandon ship as it were, leaving the plane to cause maximum carnage.
I'm not saying it didn't cause carnage. I just assume, because he sounds a thoroughly decent man, that he didn't eject because there was still an inkling of a chance to save the situation if he remained on board.
Or maybe he just didn't have time. It is obvious though that he was pulling back on the stick as far as it could go when he hit the deck. The nose was right up. But the plane hadn't enough power.
What I'm trying to say is, there was no intention to put people at risk. Crossing the road there ought to have taken a split second. He is a hugely experienced pilot. Error of judgment is possible however I feel it's more likely that something, either medical or mechanical, went horribly wrong.