Aren't there already lowered standards for graduation for many Ivy leagues?

https://www.theodysseyonline.com/ivy-leagues-grade-inflation...

I guess the other possibilities are that the students have gotten better or have optimized for the system?

This author says that the students were complaining and not because they were getting better.

https://qz.com/157579/confession-of-an-ivy-league-teaching-a...

This article says that the students haven't gotten better either.

https://uvachemistry.com/2014/12/13/the-causes-and-consequen...