you... just described Swift, really :)
Also, all those features exist even if you don't use them all. Which makes the language complex, cumbersome, and makes its compiler slow, complex and brittle. A language shouldn't be a collection of one-off edge cases, and this has nothing to do with ideological purity
Whatever the case, I don't enjoy writing languages more obsessed with theory or design purity (like Kotlin) as much.
I've found writing Swift code very pleasant, but I've been doing it for ten years, so that helps I suppose. The biggest productivity impact for day-to-day use for me in the last few years has been the new concurrency model.