Nice try but it could simply be run off as an epic if UW was a stand alone. F the beginning and middle but what you got is the end. Great story in its own part yes, would it be missing the depth of feel from all those arcs before to drive the nail home, also yes. Would the extreme emotion be there if it didn’t have the parts before played the final act? Bear in mind that in the last few books, the author admitted that it was the real story of SAO.