Jeez, Turbine, this isn't nearly as difficult as you're making it out to be.
These rankings are done every two years and they are refined based on what happened during that time.
Yes, Coastal won a national title. But that wasn't the whole deal. Our ranking a couple of years ago was based on that run of regionals from 13-16, including a pair of supers. Then we didn't go to regionals for three years. That mattered, as well as Coastal's title.
What happened in 2000 is VERY ancient history according to the rankings. Just as Coastal's NC won't mean that much if they suddenly quit making regionals.