As someone who is starting to dabble in the Apple ecosystem via Swift - I heartedly agree. There are plenty of resources for new developers who are trying to learn programming via Swift, but if you are a seasoned developer who wants to jump straight into best practices and architectures while learning the syntax and features at the same time... you're going to have a bad time.

I also feel like with Swift people are so focused on pumping out their mobile app that best practices go out the window, or even that the knowledge is seen as such a valuable and proprietary skillset that the senior and experienced developers simply keep it to themselves and don't publish (compared to other OSS ecosystems)...