Just how far has the academic bar been lowered?

Presumably, you mean the determination of the Eligibility in Local Context threshold GPA, or top 9% UC-recalculated GPA for the high school (which is not based on the high school’s determination of top 9% class rank).

https://admission.universityofcalifornia.edu/admission-requirements/freshman-requirements/california-residents/local-guarantee-elc.html