Projection much?
No one except a few extreme cases thinks that way.
Also, no one forces people to do everything there is to do in an MMO. Only people with very poor self control or people with way too much time on their hands (Hi jobless people) even attempt that.
Most players I know pick and choose what they like and do that and none of them has any problem whatsoever to be "done for now" and pursuing another hobby.
Also: some of the expectation of "unlimited stuff to do" certainly stems from the monthly fee that most MMOs ask for.
Personally speaking: FF-XIV is pretty damn close to unlimited for me. Job + Household eat a crapton of my time, then there are my flute and my piano who look at me with puppy-eyes begging for attention, then there are family and friends, my Swiss colleague who wants to play other games too ... phew some days kitty doesn't get played with at all. :X