College classes doesn't equal Accredited US College.
Exposure, good point...
To steal from heisenberg "If group A gets 20% of elite north american talent and produces 30% of the north american nhlers and group B gets 80% of the elite north american talent and produces 70% of the north american nhlers; B is better because they produce more nhlers.
Scouts to travel, but connections matter and Backswampwater, Canada doesn't have too many direct flights.
Not to mention that the college hockey facilities are leaving WHL's in the dust. And finally we don't need our national body trying to manipulate the balence of power like canada's.