If you compare an 8 team NCHC with an 8 team Big Ten (including UND and Notre Dame) objectively based on last years final pairwise rankings, I think the NCHC is still better, but it is not as lopsided as some might think. Here are the rankings based on the app on my phone(including tied rankings):
NCHC
#2, #3, #6, #14, #17, #26, #43, #55
Big Ten
#3, #6, #12, #18, #22, #31, #40, #47
I understand the argument that the league made us more playoff ready, but I disagree with it. The first two years in the NCHC, the results were similar to the 10 years that preceded it. I think that if you consistently put together good teams and put yourself in a position to win, things are going to work out in your favor.