Let me say that again more clearly. Your emotions will strictly limit your profit potential in tournament poker to the extent of your lack of control over them.
With a small raise you are inviting low pairs, low connecters, weak suited aces, weak suited kings, and unpaired big cards. With such a variety of possibilities, you are essentially playing blind, and hoping your kings hold up.
Nelson and Rodman are pros at this game and each has an excellent record of success. In this book, they bring to the novice player a straightforward strategy to implement in No Limit Holdem Tournaments. Having used these strategies themselves, well, they know of what they write.
I once saw a Magical WPT Pro do this early in a tournament with his whole stack, only to be called by the cutoff with an overpair. He was out in the first hour saying in these tournaments you have to double up early and take the chance. That is complete nonsense and rings of a cop out, not a strategy.