You have less of a chance to possess the puck if your positioning is bad, your IQ is bad, your are weak on yoir stick, etc. I get what you are saying but there are a thousand things that lead to “puck possession” in the first place.
I'm not sure what you're arguing here. He said to start the season possession was better. So if we treat that as a given our positioning was better, our IQ was better, and we were stronger on our sticks.