My brother teaches at an exam school in Boston which similarly had its requirements dropped recently, and it seems like a lot of these changes are poorly thought out and done for optics. Sure, some of the exam schools in BPS are overwhelmingly White/Asian, but the school he teaches at is mostly Black/Asian/Hispanic.

While he was previously able to teach classes of bright, focused students, now they need to break up fights of unruly students and divert their attention to the ones that are struggling. I imagine the parents that can afford it will likely remove their kids from the public school system if quality continues to drop, which will only hurt funding.

The real issue is a much more complex socioeconomic problem, but that's hard to solve, so it's easier to point the finger at schools.