>workflow organized in a particular way that worked for him
Except that it didn't, at all, he'd just become used to it. It still took him 3x-4x as long to use the structure that he had devised as opposed to the "new" one. On top of that, a good majority of the sounds that he was using were already tagged via ID3 tags with descriptors so he wasn't even using tools that were available to him the whole time. I didn't tell him that it was better that way and that he should just accept it, you're assuming that. What I actually did was ask him to just trust me and the designers at Apple for 2 weeks and try using the system as it was intended. If it didn't work for him, I would teach him how to use it the way he was used to using it (the option is always available and it's not like MacOS forces you to do it that way).
It took him 3 days to agree that the library method that MacOS used was far more efficient and better suited to what he had been doing the whole time. Additionally, it opened up even more avenues for him because he could extend those same paradigms to video and actual music files (as opposed to audio/sound effect files).
>I wish they'd actually do that in 2018
I work as a developer in digital media production and I love my Macs because they do actually do exactly that. I literally never have to mess with the OS and can focus exclusively on getting my work done. The only exception to that rule is the rare case where I have to use Adobe tools. Some of them are just unstable, regardless of if you're running them on a Mac or PC.
Also, to stop any further assumptions or insinuations, I'm also a PC gamer and have extensive background in web development so I'm extremely familiar with both Windows and Linux (mostly CentOS and Ubuntu). My Mac is the only machine that actually gets out of the way and lets me work.