I love how people think that all of WoW is piece of baby cake.
I remember numerous fights more difficult then both FFXIV and FFXI (minus Absolute Virtue/Pandemonium Warden - 18 hour boss fight is crazy lol)
Then someone will say "but items are way harder to get in FF "blah"" and I will say yeah but in WoW you are constantly updating your set because blizzard is out dating it.
WoW isnt a 'perfect' masterpiece but it is definitely got a lot of proof of concepts (in terms of financial success it is the masterpiece of MMO's- but gameplay is subjective).
