Ease up there.
I am just playing devils advocate. I think it is quite likely BH had some kind of issue, he should not have been there and the whole sale of the ride was shonky. You get no argument from me.
Even if BH said Ian could take a camera, losing it in the controls may well be Ians causing the accident. Yeah I know a lawyer would argue he was told he could take it, so it is still BH's fault.
We will never know for sure.