When a company denies claims that there is a problem with their operating system, updates, hardware, etc., the only way to get their attention is with mass spam postings on all forums and tweets. If it gets big enough you will see national TV pick up the report. Then and only then is when they respond. I've been a tech since the first PC and Apple operating systems. We are all paying beta testers of their products. They release an almost perfect product, we purchase it and report back the problems that are left.
My main beef is Apple should allow downgrading, like Microsoft, Google, Red Hat, etc..
Providing the hardware supports it, you can format your PC to pretty much any Windows version, you can flash your Android to pretty much any firmware and you can install pretty much any version of Linux on your computer. So why does Apple block it?