In over a decade of submitting bug reports to Apple, they've only ever fixed a few of my issues. Most of my reports are easy to reproduce and test. I'm better off spending my time doing clean room reimplementations of whatever their API promises or just scrapping whatever I wanted to do than even wasting time reporting bugs.
"Radar Radar Radar" is all they ever ask. I don't care anymore. The whole process is opaque with no guarantees of a fix or a workaround; it'a unworthy of my time. They have over $100 billion in cash - about time they start testing and fixing more of their own issues.