I agree there is an advantage to home field, statistically about 3 points for evenly matched teams (varies by source from 2.5-3.5 points). So the reality of Friday night in Bloomington vs south bend is 27-6 vs 27-3, and the eye test is the same IU shrunk from the spotlight of big games this season.
And seeding matters, want home field advantage? Then earn it by actually playing tough teams, especially non-conference and winning - and yes I get that the Domers scheduling is suspect as well, and they get all the breaks, which is why even as Purdue fans we would have been fine with IU embarrassing them at home. Instead you wrote another chapter in their “greatness” until they get crushed by 60 against Georgia