B1G Hockey is pretty darn good, so the comparison of The AAC to The SEC is a stretch. That said outside of UCONN receiving a promise of full membership in the conference, joining B1G Hockey makes zero sense. The benefit is all on the conference's end with increased inventory and further reach in The Northeast. UCONN would get more travel and less rivalries. As A PSU Alum who has always supported a UCONN Bid into the conference, run don't walk away from this offer if it comes.
Edit- The ideal but unrealistic scenario would be to somehow add UCONN and ND as full members. It would sew up NYC and most of the Northeast for eternity and create great football, basketball, and hockey content.
Football
PSU, UMD, RU, UC
OSU, UM, IL, NW
ND, MSU, PU, IU
UNL, IA, UW, MN
Swap out NW and IU if ND wants a Chicago game every other year. IL v. NW and PU v. IU could be protected crossovers. Nice and neat. The B1G is making so much money off of this that they lose interest in moving South. The ACC remains in tact and total Armageddon could be averted.