He is very specifically releasing quickly. I didn't see anywhere an attempt to hold a bow in position for a long time to aim --- just like throwing a ball, you don't have to hold it cocked when you are an expert.

How are these trick shots, and not refined? Those sound like belittling statements. He has done good research and discovery of how ancient warriors fought. It is fair to call them different techniques, but not refined vs unrefined. It would take some serious practice to duplicate the masters in either style.