I don't know how this idea started, but only a non-programmer could think Swift is more approachable than Objective-C. Swift is way more complicated and has more fundamentals that must be understood.
let versus var
const char* vs char* vs char const*
NSInteger vs const NSInteger
NSString vs NSMutableString
optionals, including implicit and explicit binding
NSInteger vs NSInteger*
nil vs NULL vs NSNull
differences between structs and classes (value versus reference)
NSInteger vs NSColor
vs not having generics
different ways of specifying parameters, including named and unnamed parameters
[NSString stringWithFormat: @"%@", value]
[NSString initWithFormat: @"%@" arguments: va_arg]
property declarations, including a multitude of shortcuts
@property(readwrite,copy) NSString* foo;
The problem is, if you don't learn most of the syntax in all its variety, you'll have a hard time understanding any random code you come across. Learning by example helps make a language approachable.
The problem is that you are judging a new language's learning difficulty by comparing it to a language you already know.
That said, Swift is not solid enough to live there 100% yet. You have to understand both languages currently to really be efficient. Going forward, knowing both languages will just be a very desirable skill (but not essential).