What's really disappointing is that I'm not surprised much at all by this.
You either didn't read the article or do not have any understanding at all of statistics. Only 47% of large favorites covering is a big advantage even if you don't know which games are fixed and which ones aren't. Enough that someone could have made a good living for the last 16 years doing nothing but betting on large underdogs in college basketball games and taking 8 months off.