Earlier quoted context omitted.
> Apple felt compelled to publish a video Context is important. This was a WWDC session and Apple records & publishes all WWDC sessions.
I don't really see how that makes a difference. A talk with the title "my API demystified" is an equally bad sign.
But that’s not the title of the session.
The title of the session was “Background execution demystified”
Background execution is a computer science topic that many don’t understand well. Much like font antialiasing or other computer science topics that people don’t have to deal with daily.
Note: I’m not saying Apple APIs are great. I was just originally pointing out the context of your post.