ISO: Error in ingredient meaurements ??

I did a search for a banana sheet cake recipe and the above is the first one I found. I seriously questioned 1/4 cup flour BUT figured that this was a new recipe and it had been tried and true by whoever put it on this website. I just took it out of the oven 2 minutes before the shortest time alloted and if it had been in any longer, it would have been totally burned. The cake is extremely thin, very brown and crisp on top and no substance below it except for wet bananas. I am suggesting that whoever is responsible for putting these recipes on here that they be extremely careful about the ingredients as I have basically wasted quite a bit of ingredients and had hoped to take a delicious cake to work tomorrow to share with co-workers and, more than likely, have a sheet cake full of nothing that will have to be pitched in the garbage. I am giving it the benefit of the doubt here and hoping when it cools, that there will be something worthwhile but I seriously doubt it as it is extremely thin.