You know, if I were malicious, I'd say this new system was introduced to better DT's (reps clan) chances of reaching the semi-finals (especially since after the introduction of this system, hocus pocus alakazam! : DT is second in the group rankings, while they were third with the other system, and it is almost certain that they're through to the semifinals if they beat FoR, which wouldn't be so certain with the old system). But I'd only say that if I were malicious of course.

Also, I'd like to point out that DT's record is 3-2, not 3-1. They had a 2-0 record before the match against TF. If you're going to count draws in a round as 1-1, that would make 3-1, and then we have the round they lost against TF, which makes 3-2. (Best not to make these mistakes when a number-obsessed person like me is watching =D Especially not when a seemingly little thing like this could make the difference in the end)

Seriously, changing rules in mid-tournament doesn't affect this thing's or your credibility in a very positive way.