Hockey is a giant funnel and that funnel is blocked. NCAA has awarded all college players an additional season of eligibility so seniors can theoretically return next year which then leaves no or very limited roster room for new class of freshman to come in. If you are an 02 or 03 looking to enter college then chances are there isn't going to be room on the roster for you.
Yes ncaa offered an extra year of eligibility, but how many seniors that attended school this year will spend tens of thousands of dollars on another year of tuition and fees they don't need to just to play another year? I guess a few will, but if hockey is not their future then I'm guessing most won't.