Isn't Mardi Gras week considered a moderate crowd level time? It seems like they would do this when they have a real lull in guest numbers, and not while the whole State of Louisiana is visiting. Good to see them fixing something though.
They can't avoid every peak period.
January - WDW Marathon Weekend, MLK Day Weekend
February - President's Day Weekend, Fat Tuesday/Mardi Gras
March - Spring Break, sometimes Easter
April - Spring Break, sometimes Easter
May - Memorial Day, Star Wars Weekends
June - Summer Crowds, Star Wars Weekends
July - 4th of July, Tour Group Season, Summer Crowds
August - Summer Crowds
September - Labor Day
October - Food & Wine, October Break/Columbus Day Weekend, Halloween Parties
November - Food & Wine, Thanksgiving Break
December - Parade Taping, Pop Warner, Christmas/New Year's Eve Week