So if you all run out of the building the firemen wont be able to get upstairs to drag you out?
I would argue they wont need to :)
I do accept they know what they are doing (apart from in this case) and that their advice is probably sound (apart from in this case) but I would still leg it and fancy my chances of getting out alive in the belief that the people staying will burn to death- as they did in this case.
Trust your instincts and run like ****.