There is one major kink in your analysis, it negates defense (especially in the points scored sector). If you don't think defense has an impact during a FVC event, you've apparently never been to an FVC event. In your over-all ranking analysis, you can claim that the "baseline score" is not actually points scored, but a ranking on ability, but I find that claim hard to support, and even harder to accurately quantify, especially considering the ability of the defender is also heavily dependent on the offensive robot.
In addition, I have a question. How were the groupings formed? If it was randomly, it still has a large chance of dropping a well-qualified team to the bottom of the rankings, as the four best (or well-qualified) teams have a chance to all be in the same grouping. In that scenario you could see one of the best dropped to the bottom, and/or multiple (if not all four) lodged in the middle of the rankings. The inverse applies as well, as it can still propel a sub-par robot to the top. I don't see how that would solve much (even if it slightly reduces it).
A large part of FIRST (imo, although I know many who support my claim) is being able to play against every (or many) different teams and robots. I wouldn't want to interact with the same three teams the entire time.
This change would not be well received by the FIRST community as a whole. It has had little exposure and reaction because of the particular time of the year and sub-forum it is in. But if you look at the similar situation from the Week 1 FRC regionals, you will see how the FRC community reacted. At the NASA/VCU, Pacific Northwest, and Granite State regionals each team had a "partner" they competed against in every qualification match. My team, FRC 116, was included, as we competed against FRC 122 in all eight qualification matches. The reception by the teams involved, and over-all FRC community was almost entirely negative. St. Louis and New Jersey also had similar situations that weekend, but not 100% (same reactions though).
http://www.chiefdelphi.com/forums/sh...5178&highlight
In closing. FIRST will not accept a schedule that isn't random, and for good reason. In addition it would be next to impossible to impose a ranking criteria
based on individual team performance (and unfair if it does not include some form of defensive ranking ability), nor would all of FIRST support it.