There is an easy answer to this post. Dzindzi and Alburt were not aiming to give you the opening that made White's job the most pain. They wanted to cater to an opening that was easy and reliable for a player who is just beginning to learn opening theory.
The reason Alburt and Dzindzi are good is that they teach things at lower levels. They did not choose something very complex, such as the Alekhine (which Alburt is very knowledgeable of). If you recall the early part of the book, it is mentioned that to play the Ruy, you must learn a terabyte of theory. There is some truth to that...to play the most fashionable lines.
What these two have aimed to do is to steer the game into a direction that is easy for a learning player to be familiar with.
Here's the point - quit looking at stats. If you look at stats, you will never be creative in your choices, and you will be doing the same thing that so many others do. Take what is taught in the book, and look at it for yourself. Understand the ideas. Try them out. See what works... See if this makes any sense. He gives maybe two pages to 1. f4 defense. Believe me, it takes more than two pages to learn about 1. f4...Bring on two pages of theory and no intimate knowledge, and my kingside pawns will be kissing your king!
So let's look at the moves from the beginning...
1. e4 c5 - the game has a definite imbalance. But why are you playing 1...c5? You really ought to try to understand that, if you are going to have a grasp of even why to play the Sicilian. Black clamps down on d4 and b4, gaining queenside space, and has given the queen leeway to run towards the queenside.
2. Nf3 (assuming White plays the mainline) g6 - Black is fighting along the a1-h8 diagonal. He plans to bring his bishop to g7, and his claim for quickly getting out the bishop is that he believes that by avoiding ...d7-d6, he can sidestep some dangerous attacks that White has at his disposal. Of course, he doesn't have the added control of e5 that he would in a standard Dragon.
What do I read in this? A greater chance of equalizing. If you read about any of Dzindzi's work, he often steers things into endgames - or at least what I have seen. Not that he cannot play a blistering attack, but he tries to run down the aggressive potential of White in this opening.
If you are looking for a more double-edged opening, play the 2...d6 systems... try the Najdorf e5 variation. Or the Sveshnikov. But even there, you have a lot of theory to learn.
If you are beginning to study chess, stick with 2...g6 in the Sicilian until you find that you are unhappy with it and want to try something else, or that you find you do well with it and are happy with it. I personally try a few different ideas, but you will find what works for you, in time. Forget the stats - they sometimes can be misleading, because you may not even truly understand why one side is better in a position, without intimate knowledge of it.