I was out in this same session, I overtook the BMW about a lap before this incident.
I have plenty of experience on track and driving standards, this bloke was driving like a belI. I was sat behind him for a good lap whilst he refused to let me past.
He was clearly struggling to keep control of the rear end with his right foot and the car was literally all over the place. (Oversteer and flick back). In the end I just went up the inside into tower.
You have a number of options when a
car in front gets out of shape on track, and anchoring on the brakes half way down a straight is not usually the best option. I did not see this incident happen, but I can picture it pretty clearly as I've been in similar situations many a time. There isn't much Dan could of really done, but you can never tell what another driver will do. Hindsight is a wonderful thing though. I would have most likely of done the same in the situation.
When you are on track you have to trust that everyone you go near has a sense of ability, spacial awareness and courtesy. If you don't assume this, you will spend the day going very slowly and scared of everything around you (and more likely end up in an incident).
Dan was collected in someone else's incident, FACT, the BMW should have accepted responsibility. Once the BMW had gone infield he should have kept it on there and slowed the car down in the MASSIVE field in the middle and rejoined when safe, not kept it pinned.
Accidents do happen on track, and anyone who pushes it regularly will have them. It's just a shitter when someone else causes it.
I was rear ended at Donny by a formula Renault the other week, the guy didn't say a word. The race car ruined!
Take it as an experience and move on!
As I said Dan, got a trailer here if you need it.