If he would play b6, Bb7, e6 (or the white alternative) we would have Owen's (or The English Defence), or Larsen's Opening. Those openings don't include the double fianchetto (the other bishop is usually out harassing) and are quite strong and flexible.
Regarding the Hippo setup though, if you check out RoseQueen's post (linked below) you'll see an example of how to break through.
http://www.chess.com/forum/view/chess-openings/how-not-to-play-as-black
Whenever I play against my dad, he has a very defensive way of playing, and generally plays the same opening whenever he's white or black. He doesn't know anything about strategy or whatnot, he just plays by anticipating moves and goes from there, which he's quite good at. I'm wondering whether his opening is actually sound, because it goes against fundamental principles that I've come to learn from chess openings. Hypothetical game, he's black, i'm white.