Sadly this isn't news. Apple have been doing this for the last 5 years at least. I support a large fleet of Macpros (Ha, yeah "fast" and "magical" with 5 year old procs in them) Everytime an OS upgrade comes along something is silently broken. Trying to get support is a nightmare. For example when they changed which version of kerberos they used without any warning. Or changing the syntax of automount. Apple are shit…
Recently, though, with expanding market share in the mobile space and laptops, Apple is the new Microsoft. Unfortunately Microsoft is still the old Microsoft.
We had a weird issue with something on Azure, raised the issue and got not only somebody very knowledgeable replying quickly who pointed us in the right direction but also had the docs updated a day or two later.
Contrast to the utter crap "support" we got when an IntelliPoint update had a fight with the Alps software on Dell Latitude laptops and randomly triggered a gazillion consecutive UAC elevation prompts. After being told by "support" for the third time to do something stupid like disable UAC or turn it off and on again we just nuked IntelliPoint from orbit and voila, problem fixed. The next update of IntelliPoint fixed the issue so I'm sure someone managed to report it correctly.