This seems like advice for sedentary people. If you're a runner, or cyclist, or swimmer, you more or less need those "empty" carbs to replenish glycogen stores. I don't understand the idea of modeling a diet around a sedentary lifestyle instead of moving around a bit.
- - - Updated - - -
This is a sufficiently broad definition of "toxic" as to be useless. It's just plainly not what the word means.