I know you were excited to post that, so I hate raining on your parade, but there are more examples supporting my point than yours.
Tennessee got three teams from the south, all a bus ride away. Coincidence?
UNC - two of three teams a bus ride away.
Texas - two of three teams a bus ride away.
East Carolina - all three teams a bus ride away.
Oklahoma St - two of three teams a bus ride away.
Southern Miss - two of three teams a bus ride away.
Texas A&M - all three teams a bus ride away.
Then of course you have teams that aren't near anyone, so they have to be placed somewhere far away. You found one example where it looks like the committee did something on purpose, but that's it.
I mean, the #3 National Seed has the #7 RPI team as their #2 seed, while the #9 seed has the #33 RPI team as their #2 seed. That alone should have opened your eyes.