This is just a short, repeatable, routine that incorporates all the elements covered in his lecture. It is intended for practice and working on those elements, nothing else. The use of 4 or 8 bar phrasing in choreography would come later, using a longer routine and more exciting figures.

To be repeatable the routine needs to finish with the original starting foot free to move next. Dancing 3 beat bars in pairs would normally achieve that but here we have a chasse to allow work on the half beats. The extra step now leaves us on the wrong foot, so we either need another syncopated figure or the routine must contain an odd number of bars.

You could extend the routine into 12 bars by adding a natural hesitation (2 bars) (giving the required foot change), reverse turn (2 bars) and LF closed change (1 bar)