> Is there anything genuinely innovative about Swift
Apple's thing is innovation - taking technology that exists but is clunky and making it accessible.
Swift is intended to be a more accessible alternative to Objective-C. It is memory safe (reference counted like Objective-C's ARC but built into the language) and type-safe, and has modern features such as named parameters, generics, duck typing, closures, multiple values, inline arrays and dictionaries, etc.. It's intended for writing user apps, but is also suitable for writing system frameworks. It also has some (possibly overly) clever syntactic sugar that has enabled SwiftUI's pseudo-declarative API.
Regarding memory safety we have: Swift (mostly reference counting), Rust (mostly compile-time checks), Java (mostly garbage collection), and C++ (smart pointers or manual/unsafe.)