It seems like Boise St and Murray St got swapped too. Boise should have been a 7 seed, but a “geo swap” there puts Murray St up from an 8 to a 7 seed and play in Indianapolis, and Boise goes to Portland but drops to 8. Kentucky and Gonzaga being the 1/2 that have their round 2 affected.I agree, I think it was swapped to make each closer geographically (better attendance potential). Perhaps not common but I'm sure it has happened previously (but only if teams are close to the seed line).
Expanding on the concept -- It would seem to give the 11 and 10 advantage over the 6/7 for "crowd support," but the 2/3 seed teams then might get a slightly weaker opponent (seed-wise) in round 2. ... Not sure if I explained it clearly.