I like Gruber, he has a CS degree and had a brief career as a web developer (which certainly helps him write about technology as well as keep his site operation

I like Gruber, he has a CS degree and had a brief career as a web developer (which certainly helps him write about technology as well as keep his site operational), but he has been a full-time columnist for his own tech blog for 16 years. As far as I know, he does not have experience writing client side code, either using AppKit/UIKit or using a tool like React Native. He has plenty of people in his network who are professional developers with SwiftUI experience. However, he was talking about his gut feel from a core system service having so many UI nits from Apple, likely associating that with issues he has heard of from developers who have tried to adopt SwiftUI in their existing and/or new projects. So thats the basis of my opinion - a quote or two from those full-time developers would added greatly to the article, significantly more his personal reaction. As a developer with some client-side experience, I'd say the nits speak far more to Apple's MacOS development process these days than to the quality of SwiftUI. A decision was made to add it to the 13 beta and commit to shipping it, rather than hold it back for macOS 14.