[pbhjpbhj]

I assumed he meant rotating the handlebars clockwise and anti' when he says "forward and back".

Both techniques are doing the same thing. The one in the post is explicitly guiding the rider as to the mechanism involved in keeping the bike upright. The "remove the pedals" method is allowing the rider to discover this themselves. The later method probably introduces a side-to-side motion by virtue of the mechanics of pushing off with ones feet; you twist and turn the handlebars automatically.

OT: Can't read that link at all in the default style, dark blue on black?