Playing games is necessary yes… but I don’t agree it’s all about games.
What has made the US development program so great over the last 20-years and second only to OHL, which they’re about to overtake if they haven’t already, is the focus on skill & practices.
USNTDP (including prep schools), and NCAA don’t play anywhere near the games they do in juniors, midget, or even Pee Wee in Canada, but they practice a helluva lot more with tremendous focus on skills.
I watch my kids practice 4, 5 times per week, it’s mind blowing the focus on skill.