Where did you get this information? Have you seen people getting blown off their feet? Second-hand anecdotes? I am assuming a wind study was completed before the tower was built...
What is currently under construction is NOT a supertall... it is going to be 262.8 metres tall. The supertall (phase 2 of this project) might never get built, or it may start soon, who knows?
Here is a diagram of the 2 towers.