Every year, there’s a mix of prospects who start their season playing mostly — if not entirely — in the US high school system. And every year, there’s a small handful of guys who just absolutely tear up high school. They put up video game numbers, and they look completely dominant in such an easy fashion.
There have been plenty of NHL players who had good careers that were drafted from high school, but it is a much less competitive league to assess quality prospects than most others. Any prospect worth his salt will and should dominate high school.