Documentary evidence from Vietnam and a 1000 other places pretty much nullifies what he says though. He liked his focal lengths and approach and framed what he said around those dispositions. I do not think photographers capturing raw environment and emotions with a wide angle lens are somehow falling back to shouting because they're incapable of making good photographs with a longer lens. If anything they're letting the photograph do the shouting by it's sheer immersion.
Stop worrying about grain, resolution, sharpness, and everything else that doesn't have a damn thing to do with substance.