this technique is not better or faster. it has many more steps than a drunkard's path and it's a circle, not a drunkard's path. they also didn't show you how you have to stitch around the round snipped section by lifting the flat surface with the hole a tiny bit at a time while you work your way around the entire hole, lifting with one hand and steering the fabric with the other. been there, done that. only once and never again.
imo, it's a much better idea to practice and learn how to curve-piece the traditional way with no glue or freezer paper. i think sometimes we tend to over-technique ourselves and forget the craft of piecing.