[protomyth]

If this was the only item, I would agree with you, but it isn't. Finder is buggy and broken since Mavericks (along with some bugs that look like the got rebroke in [edit]10.14[/edit]). Each new version of Mac OS breaks more stuff. This is exacerbated by their hardware failures and constant "only affects a small number of users" line that gets old. Its a constant stream of breaks these days and they need to start looking at the details.

[rectang]

My 2012 MacBook Pro Retina has been more stable on Mojave than on any previous OS. It used to crash at least once a week; at the moment `uptime` tells me it's been 21 days since a reboot.

I attribute this to improvements in the reliability of Airplay: my machine used to be prone to crashing after connecting via Airplay (either sound only or mirroring) to my old Apple TV.

I'm sure other things have been broken along the way, but it seems to me like Apple is tackling hard problems at the OS level and making progress.

[protomyth]

Airplay is something iOS uses, so I would expect it to get fixed. Finder and Keyboard Shortcuts are Mac OS only, and it shows in its lack of testing. I don't think Apple is tackling the hard problems unless it benefits iOS.