Basketball is a game not a dance. If you have a physical attribute that enables you to put the ball in the basket at your end and keep the ball out of the basket at the other, you'll probably win. Hand-eye coordination, speed, balance aren't the only physical attributes that enable you to excel at putting the ball in the basket and keeping the ball out of the basket at the other end.
That said, there are drawbacks to being too big. Heart, circulation, joints, back. Great size magnifies their issues. Other very tall people have taken a crack at excelling in the pro ranks and it's a mixed bag of results. Edey has a great chance at excelling. He also is very strong and seems determined to the point of being remorseless. (Says the guy who has watched 2 of his games.) Good luck, kid.