I read it again & it says "most" dates starting April 2nd, not 7th...here's what I copy & pasted -
Passholders, plan a springtime getaway at Walt Disney World Resort and make the most of your Annual Pass! Book earlyby March 31, 2013and enjoy lower rates at select Disney Resort hotels, valid for stays most nights April 2 through June 3, 2013.
For example, stay in a standard room at Disney's All-Star Music Resort starting at just $82 per night, plus tax for stays most Sunday to Thursday nights April 7 through May 30, 2013. Explore other great nightly rates, including weekends, available at select Disney Resort hotels.