Not entirely same. But the guy in that video also explains how we rotate someone to Kessler's corner (Fontecchio on a lot of the examples) to provide another option for the ball handler, who is dribble penetrating from the other side. So they can either shoot, lob/pass to Kessler, or kick out to the weak side corner based on the read and how well the defense follows all those motions.
So the "Kessler camping at the corner" has just so much more to it than just him taking some occasional corner 3s, or him "trying to space the court".
