There is nothing wrong with this system whatsoever. Your personal preference is to see a system where there cannot be a tie in win loss records where you then have to go to the next category tie breaker. But that is just your personal preference. There is nothing wrong or unfair in the least about how CSI is determining who wins the grouping. It is all very logical and just and makes absolute sense. It just isn't the format of your personal preference.
In "your" personal preference...