Gonzaga isn't a 1 seed in anything except advanced stats. They have played 7 quadrant 1 games and are 4-3. Michigan, who is probably going to be a 3 seed at this point, has played 13 quadrant 1 games and are 8-5. Purdue has 7 quadrant 1 wins, and they're a holy lock for a 3 seed.
At some point, I feel like seeding should reflect accomplishments and wins rather than KenPom. Gonzaga has played one tournament team since December, and they're only a tournament team because Gonzaga lost to them in the conference tournament.