I absolutely agree, yea, and it's locality based... so up here in Vancouver it's really easy to find people familiar with AWS and system programmer types (Java/C++) along with the strong web development scene adding a lot of availability to react, node, a little bit of remaining angular.
But within that market it's further divided, if you're looking for non-game related Objective-C developers you'd probably be in trouble and so on...
It really is a super complex question, but that's the sort of ranking vector I'd be more interested as opposed to "How quickly do stackoverflow questions get accepted answers?" and I am under no illusion that it'd be super hard to measure.
