New company policy - annual review no raise!

My company previously did review and raises at 6 month mark.. then annually thereafter. This year, they changed to doing ALL reviews at the first of March, regardless of hire date. Myself and several colleagues just missed the 6 month mark ( by 3 days to 2 weeks!) and had our reviews but were told we won't be receiving raises until our next review, next March! Two others in our department who made the cutoff received them. I was told by my my boss that she is sorry, and if she could , I would be receiving the max allowed as my review was flawless. I get that they want to change the policy (next year will also be merit raises for 1st time instead of across the board).., but we all feel pretty cheated having received positive reviews - yet having to work another entire year without additional compensation. To put into perspective, the 2 employees who made the cut got their raises after 7 months employment, the remaining 4 of us will not have a chance for a raise until we've worked 15 months. We were hired only weeks later than the two who were compensated. How would you reconcile this? I like the company, the boss and the work but I'm left feeling rather underappreciated...