Breaking rhythm down into an arrangement of 1 beat figures helps hone rhythm and develop solid sight reading skills. The concept can also be easily expanded to simplify syncopation and all the tuplets (3, 5, 6, 7, etc.).
If you want to perfect rhythm accuracy, sight read rhythm fluently, learn new guitar strum patterns easily and feel complex rhythms quickly, memorizing these building blocks of rhythm is one of the most important things you can do.