I'm sorry to give any article a rating this low, but there are a lot of problems here.
First, I can't see that this qualifies as a coop at all. It's just a small wire box with no perch to roost on, no space for the chickens to move around, and no shelter from wind, rain, or hot sun. It doesn't meet chickens' needs at all.
Second, it's just photos without any explanation of the design process, the situation it's meant to function in, or how the build was put together.
Third, there are no plans or dimensions given so that if a person wanted to duplicate it they couldn't.