His point is valid still. The game's footage from the trailer has the art style that does seem too cartoon/TF2 for what Law and Order is. If it was the same game with a different name, an original IP, then the style may fit. As is, it doesn't fit the tone of the show.
The animations for almost all Telltale games, in my eyes, are the same for the most part. There are some new animations but the main few animations have been there forever. BTTF:TG suffered for it's lack of animations, the characters just seemed to act like a bad actor who didn't know how to convey the emotion correctly. This is mainly for dialogue though, outside of conversation animations are much more varied and fluid. Although this does make the static talking animations look more obviously odd.
The art style is still only one piece of the game, the gameplay might be brilliant but opinions right now are on what the trailers show us. Don't judge a game on graphics, judge it on the gameplay and entertainment you will get from playing it.
Btw, don't hate someone to give opinions. Offending actual, just, criticism won't help anyone.
............. Why are you looking here anyway? Message is up here^