A much clearer homage to No Country For Old Men happens just a few moments later, when Lou fires his gun at Hanzee, then comes around the side of the car where he expects Hanzee to be, only to find him gone.

He definitely doesn't care what the critics say. It's just that, in his updated response, he made sure to distinguish that he didn't care what "the other critics" say, thereby identifying himself as a fellow critic. It's that small distinction that lends his words true gravitas.