Wicked Slappaahs
I miss Tie Domi
I was just giving examples of players from our team who haven't been invited. You do realize though that Hayhurst scored 12 goals the season prior? He also was averaging a point per game prior to his injury on one of the worst offensive teams in the country. Leppanen had 19 points in his freshman season on an offensively deficient team. They are by no means major snubs, but they are for sure better than many random players I have seen who have gotten invites.
On the otherhand, Savory is a major snub. He's the best returning goaltender in the ECAC and had one of the best save percentages in the country despite only being a freshman.
Invite or no invite, undrafted kids who perform well at the D1 level will get noticed and have options, post graduation. As SS pointed out, non-drafted camp invitees are largely cannon fodder for the teams' A list players. It ain't that big of a deal. Most D1 kids are skating/working out with other college players and/or pros in the summer.