It's just a different stylistic choice. A lot of font nerds prefer the OSX choices because they try to stay true to the original font spacing without regard to the pixel grid.
Missing sub-pixel antialiasing is plain technical deficiency, not a stylistic choice. I agree arguments can be had about hinting and aligning the glyphs to the pixel grid, but not much beyond that.
Yeah they didn't completely remove it, but they did a good job of hiding it by not making it an option to turn on in the GUI. Have to use a terminal command to enable it:
https://apple.stackexchange.com/a/337871
In general with a HiDPI screen I don't find any need for it. But on a low-res display like the typical 24" 1080P models it certainly helps.