?
Why should it be? This was because of morons not driving to the conditions.
I've been chatting with someone who actually travelled on the road and must have just missed this accident, he said the fog just came out of nowhere, yet nobody acknowledged it. There were loads of people with no fog lights on, people going way too fast in the outside lane, people driving too close. Basically normal motorway driving in England but couple that with dangerous driving conditions and it = disaster. This is an attitude problem, an ignorance problem, not a speed limit problem.