In what dimension was FFXI harder than wow ?

And to answer the Op's question, there is nothing wrong with WOW, i guess different strokes for different folks.

Oh and BTW: Time sinks do not = hard
Might be easier to ask, in what ways is FF11 easier than WoW, would actually be doable without writing a 40 page write-up.
Almost every aspect of FF11 is harder than WoW, if you don't believe me, you have never played WoW or you have never played FF11, one of the 2. Until they nerfed CoP, there was nothing in WoW that even compared to the difficulty of just a set of missions in 1 of FF11's expansions.