This is easily the best change to the raiding scene the game has seen.

The raiders get to wag their epeens with higher tier loot from the 25mans and the casuals get to experience content just like anyone else. (This, more or less, is what the WoW endgame was intended to be before WoW went beta all those long years ago.)

And make no mistake, any raider who disagrees with this decision is either a fool or an entitlement stooge. There is *no* logical reason to restrict content to some 'higher' band of players while preventing the largest section of the playerbase from seeing it. None what so ever. The content is not devalued just because it's more accessible.

As for the 'OMG, 10 people can kill Arthas? Bulls**t!' argument, it too is fallacious at best and spiteful at worst. Less people translates to a more epic and more personal fight. With 25+ people you're just a face in the crowd, but in a 10man your specific abilities, talents, and play style are unique and worthwhile. And if you look back at the WoW lore, the game has historically been a series of 1v1 or small group encounters. (Arthas and Jaina versus Kel'thuzad, Kael and Vashj versus Maiev/Lord Garithos, Arthas vs Mal'Ganis, and so on.) Even in other traditional fantasy mediums, a group of 4-7 people is the norm.

Why people don't think others should see content if for no other reason than some perceived lessening of quality is beyond me entirely.