User blog comment:Blade0886/The Debunking Show! Episode 1: Universal Goku/@comment-24561308-20160603201019/@comment-4363364-20160603202252

Why would it be otherwise? It's clearly what Old Kai stated. While the point of impact created the wave with the combined power of Goku and Beerus, the wave gradually became stronger the further it got. And well, while it's your opinion to not believe him, I personally would rather believe in the observations of the wise guy who has been right all along until now than my own thoughts. Besides, if you want someone to back up Old Kai, go ask Whis. He feared the same thing would happen, even though he didn nothing to intervene.