Take most of the Adobe creative suite as an example. Different paradigms will fit different aspects of the UI design. Nobody wants to expend the same effort to

Take most of the Adobe creative suite as an example. Different paradigms will fit different aspects of the UI design. Nobody wants to expend the same effort to build CRUDs as they would when they're working on "groundbreaking" stuff. Reality is a bit more nuanced: you want to abstract as much as possible and make it trivial, so that you can focus most energy where it matters. Patterns/Language/Frameworks all come into play here, and SwiftUI is a beautiful addition.