To see a world in a grain of sand,
And a heaven in a wild flower,
Hold infinity in the palm of your hand,
And eternity in an hour.
-William Blake
I think most people who complain about the lack of originality just fail to see the brilliance in the subtle changes. So the most recent example, when Urjak put that firestorm flipper on, that's a big leap for me. The whole chassis shape and connection points has to be reinvented. But most people just don't get it and instead complain about the silly collision mech vs visual mesh.
To me, anyone can make something new and useless. It is only when what's new actually has a purpose, be it look or function, that the human thoughts involved actually have meanings.