There is a lot of nonsense surrounding topology. If you look at pic related, at the center point and you go around skipping every other vertex you can can see that although it's made of quads, that's still a 5-point patch. He just manually subdivided it and called it good. It would have been better if he left it as 5-point patch because if you subdivide it, then you're required to guess what the interpolator would have done and that's not something human intuition is very good at.
If you look closely you may be able to perceive that that point is misplaced for that reason.