#1 - July 19, 2011, 10:50 p.m.
Never mind the fact that Heroic Shannox, arguably the easiest of the heroic bosses has been downed less than 2000 times or the fact that Normal Ragnaros has only been downed around 3000 times.
Because 25 people on the planet have killed Heroic Ragnaros, the tier is now over and therefore, easy.