They simply should have been far better prepared to attempt to summit at this time of the year. The notion of a high-speed, low-drag approach is unreasonable at this time of the year. One needs plenty of clothing, water, food, shelter, fuel, batteries, and communications capability...especially in the winter. I feel very sorry for them, at the same time, they were making a very risky gamble and lost.
~ Blue Jays ~
I don't think they were stupid, but maybe that was exactly the thrill that they needed that makes them look stupid.