I'm glad that we share the same view in the 5 points you outlined contrary to most people's perceptions that Chinese is 'the most difficult' language to learn. Fullstop.
As a 1st generation Australian Chinese with a strong sense of Chinese heritage instilled, (with my mother being a Chinese language cultural ars teacher plus my father being a Chinese calligrapher), I feel dismayed that we have a lot of people wanting to learn but most leaving because of this misconception or irrelevant teaching styles.
Your article has cleared the mist and supports my mission now to help anyone, anywhere Start Speaking Chinese in 58 Minutes with No Pen, No Paper.