Statistical Analysis has been used and popularised in many sports, baseball, football, basketball, even Olympic track and field, but it has never been applied to a pseudo-sport like professional wrestling.
Looking at a famous case, the downfall of WCW, could WrestleLytics have helped save the company, deciding whom who hire, whom to fire, and whom to build the company around from October 1999 when Vince Russo took the reigns of the company, to the company's sale to the WWF in March 2001.
Moneyball allowed the Oakland A's to become a good baseball team despite having less money than almost every other team in the Major Leagues. It applies metrics to sports performance.
The author tries the same thing to keep the WCW afloat during the Monday Night Wars. WCW went under in a perfect storm at the turn of the century. A bloated payroll, a poor reputation, they were bleeding money.
The author makes a good case for how to save the company. However, the greatest enemy WCW had to face, were the corporate suits that took over when Turner sold out to Time Warner.