User blog comment:Kaido King of the Beasts/Future Devil Fruits/@comment-72.171.192.122-20151017063608/@comment-67.204.208.3-20151018161818

That's what they say.

But he wasn't controlling it, he was only "reading" it. If that makes sense. He was just being creative with his own powers by exploiting physical properties of nature; it's like saying that Luffy can control gravity because he walks on the ground.