The University of California is using graduating high school as a proxy for race

I don't see how this is different than before. They discuss the changes in 2020, but I'm only finding two things that happened then.

    - Prop 16 failed, but this maintained the status quo (keeping proposition 209 in place)
    - UC stopped requiring SAT/ACT scores for admissions

It was already part of the analysis on Prop 16 [0] that universities had been using the student's high school and residence location for making these decisions as a result of prop 209. What's new about this particular analysis that reiterates that fact with some newer statistics?

[0] https://lao.ca.gov/BallotAnalysis/Proposition?number=16&year...

This headline doesn't describe the story. UC is admitting a more sociogeographically diverse mix of students. Very unmeritocratic.