Canadian Spaces at NCAA Schools are Diminishing
Since the USHL became a strong alternative for recruiting top end players the number of Canadian players recruited to NCAA teams has diminished. The latest numbers I have are a couple years old but the breakdown for the league of origin for players in the NCAA are:
USHL: 60% of roster spots
EJHL (US East Coast League) and NAHL 15%
CJHL: 20%
Other sources: 5%
This past season the newly appointed head coach at the U of Ohio cut Canadian players to free up scholarship room for American players
The reality is that because of a surge in the number of american kids playing hockey in the last ten years and the development of elite level minor and high school leagues, most coached by high level paid coaches with professional and NCAA experience, the NCAA schools are going north of the border less and less to find players. Several of the top Div1 schools are State sponsored and the political will to grant tax payer subsidized scholarships to Canadians is not anywhere near the level it was when Canada was the premier hockey factory in North America.