While I agree that Ivy League admissions could be more transparent, I certainly hope they don't move to the Oxbridge style of purely focusing on academics.
University admissions are not just a means of selecting people - they are also important behavioral incentives for teenagers. I'd much rather encourage high schoolers to focus on a wide variety of interests (for some that might be academics, for others, the arts) rather than coerce everyone into caring about grades at the expense of everything else.