Where are all the one, two, and three letter words? Does Gibson never use "a", "or", or "and"? More importantly, how is this an effective placeholder for Englis

Where are all the one, two, and three letter words? Does Gibson never use "a", "or", or "and"? More importantly, how is this an effective placeholder for English text without them? This seems all too common in these alternative ipsum generators. I guess people aren't actually supposed to use them?