A car programme? Are we watching the same show? It is essentially a "men behaving badly" style entertainment show with a bit of driving. It is all about things appearing to go wrong when it is all highly scripted and intentional, and blowing up caravans. It is a good formula, but let's face it the cars are just a prop for the hi-jinx.
So as I see it, the show decided to push the boundary, they realised they went too far, they cut the scene, it still blew up in their face. Just seems to be a product of what the show is, I don't get how people can be shocked or surprised. If they aired it, that would be very different. I shudder to think what the script writers must throw out before filming even starts, perhaps we should haul Clarkson up for that as well...