Everything seems to get sacrificed at the altar of Developer Comfort. Performance gets thrown under the bus so we can write everything in JavaScript. Platform-specific features get abandoned or neutered in a cross-platform framework so we only have to target one API. We ship gigs of Docker containers so we don’t have to get our software to work on all the customers’ computers.
This is just another example. Wouldn’t it be great if iOS apps and Mac applications converged on the same thing? Only a developer would want this.
So why would it suddenly be a good idea to import this from iOS?
At least Apple managed to move all their settings from one paradigm to the next in one year. I’m looking forward to the improvements they make to the app in the future.
Why would you ever want added cognitive complexity?
If things need to be different then sure. But if they can be unified in a way that works great for both then please do!
Honestly, with their tight integration, I don't even think of watchOS and iOS and macOS as being so separate. They're all just a kind of "appleOS" that gets applied to different form factors. So UX unification is ideal wherever it makes sense.