I wouldn't say that, gameplay-wise this is probably the best. Multi-takedown, more refined combos, new combo specials, even the tank battles were very good (they just overloaded on it to a point where it crossed annoyance over enjoyment).
I like the story too, it's mostly the ending that killed it, it just felt like "that was it? that was the ending?", it should have been more epic than just a slow wlk through his mind without, should have been much more challenging too. Didn't help with them constantly denying who the Knight is then it turns out to be who everyone guessed it was