Badass? Sora said like 100 times during the speech they are weak. That was the strange part of that speech. It's like he had some single, limited description of weakness in his mind, and funnily enough it was the wrong definition, the outdated definition, made obsolete by the world obeying only games anymore. So, anybody who can win games is strong, even if it was a brain in a jar with no muscles. If you are weak, you lose games. So, what's the point of declaring you are weak? But it seems like he managed to majorly arouse the folks even with the faulty speech, so all is well when the end is well.