I'm the opposite. When a platform/library allows me to do something complex very easily, I get extremely suspicious. My experience tells me that this ease, that usually comes with reduced control over what I'm doing, will eventually bite me in the ass so hard I won't ever recover.

For SwiftUI specifically, I heard people complain that it makes it easy to build things Apple has made a provision for, but for anything even a little bit non-standard you're screwed. Also lots of undocumented "magic" behaviors with paddings and animations and such.