I'm not saying whether you are a bad driver, your having a go at me telling me that i can't comment on your situation, fine, but you passed judgement on someone elses situation.
The whole point of black ice is you don't know its there, yes you should be driving according the conditions but sometimes its hard to choose between 'granny slow' or making progress. And i've had many situations where ive had to make quick decisions, i'd have been dead a few times over by car drivers pulling out in front of my motorbike if i didn't, i'm simply saying if you have never experienced a situation before, i.e. car sliding out of control it can all happen so fast that you have not time to make a decision nor the experience to make it correctly.
If what we are told is true, its not like he went 'Lets see how fast i can take this bend maaaate', he was driving what he thought was a sensible speed, but something (black ice) took him out of his personal experience into new territory and in a panic a wrong decision was made, thats how people react, there would be very few crashes if they didn't!