This guy is a bit over the top with the quotes. He's also said that "Batting average is Satan." but that doesn't mean he's bad in his job. He's a bit of a pregame prep guru. Bautista, Tumbo and Goldshchmidt all rely on his teachings. His big thing is preaching the importance of watching what opposing pitchers do throughout the whole game and making observations as opposed to just focusing exclusively on your own PAs. That seems like pretty sensible thinking.
You can read about it (and also get the Satan quote), here: http://m.mlb.com/news/article/45814282/steve-springer-works-with-blue-jays-minor-leaguers-on-mental-approach-to-the-game/