why would they be all dead?! neither i nor anyone else, i think, have claimed that everyone that speeds excessively will end up in a fiery death - that certainly would be a pretty hysterical thing to post would it not?
to put it in simple terms - if something goes wrong, out of a drivers control, the speed they are travelling at will have an impact on the outcome. take the driver in the op, maybe what caused the crash was out of their control but what 100% was in his control was the speed he was travelling at. had he been driving slower then the outcome may not have been so brutal for the pair them. if you can't or won't accept that going faster increases the risk of crash and increases the risk serious harm or injury if a crash occurs then i fear all the advanced driver training you've been on was either wasted or you didn't pay as much attention as you should have as i'm pretty sure that would have a major point in the training.
that's all well and good but it doesn't account for the actions of others or situations outside of the conditions, car and driver ability. and you may well find this hysterical too but it's genuinely frightening that someone such as yourself who has been on advanced driving lessons isn't aware of that. is it too long ago to ask for your money back

there's nowt wrong with driving at 150mph and fair play to you for having the skills to successfully drive at that speed, but public highways isn't the place for that, irrespective of your ability, the cars ability or the road conditions.