It's not unfair. It's a perk of staying onsite, the Early Magic Hour. All the parks have them. Each day, a certain park opens an hour early for resort guests.
However, I read somwhere here that EMH had been cancelled Easter Sunday for MK. I think it's in effect for all the other parks, which is unususal. It's usually only one park per day. This is a special circumstance due to the holiday.