Nice, but about half way through he simply states that now we need a cadence for each chord in the harmonized progression without any explanation as to why that would be so or what that would be used for. Starts out simple with the basics and then jumps way ahead with no explanation.

I just mention this in that in my looking at this teacher's offerings I often noticed these jumps in his material and for me he spoke just a bit too quickly. This is coming from a jazz beginner's perspective. (long time player in other genres).

This is not a complaint per se, but just my personal reaction to a certain teaching style interacting with my personal preferences. This is why I chose Matthew Warnock for my teaching platform. Of course everybody's reactions will be different.