That's the point. People talk about how Cresselia stops so many teams consisting of hugh threats left and right and then suddenly someone pulls out a Pokemon that's considered garbage, but is still able to get around it. Well, barely, but the point is: if something terrible can work out, whatif there's something better?
I think, if someone wants to get better, he should have room to think for his own and and by putting up something terrible, there's enugh room to improve, isn't it?