Probably the same as why people hate SAO: it's overhyped and popular among "new" anime watchers.
English
-
The 1st season of SAO was good. Then it slowly went downhill. Kirito consistently being badass is not exciting. It's dull and lackluster. And the girl that he was helping in the last season was the most pathetic, useless bitch EVER.
-
U wot m9? It's not overhyped Lego.