I don't think he's 7' but he looks all of 6-9 or 6-10.
And if he's still growing, that 6-11 wingspan sure looks suspect too.
Either way, it's fun watching him develop, finding new places on the floor to attack the opposing team's defense. As time goes by, he'll discover more and better opportunities just as Paul Peirce did.
The Kid's going to be quite a weapon...and shortly.