I think that is the point that is being made, they are unique as in dumbed down, less playability, more out of control graphics than substance, over commercialisation. In short, X-2, XII and XIII have caused more debate and division than anything that preceded them and for good reason.
To suggest that these games are getting panned for nothing and that being unique is some sort of valid excuse is more silly. Reminds me of other failed retorts, the very best of course is:
"If you don't like it, then don't play it anymore."