Like @mike I do appreciate your response. I especially appreciate your other responses on several issues on other posts and to me specifically in an DTS incident. I think it helps us all become better developers (we all don't have degrees from Stanford after all). I did have a few knee-jerk reactions reading some of the responses here. I decided to take a deep breath and think on it a bit before replying.
I appreciate that you confirmed the original issue reported here (that the "Finder Extensions" section has completely disappeared from System Settings) is indeed a bug and not intended behavior. This was done without prior warning. If you do deprecate an API without introducing a feature equivalent replacement, this isn't the way to do it.
I think it is reasonable that others inquired about the future of Finder Extensions in response to all this. I don't think it is particularly helpful to point out that the intended use of an API is not what Apple expected. I know you probably didn't mean it that way but when you read it, it could feel like a cop out. "You were holding it wrong the entire time, so if the section in Systems Settings disappears that's on you." Again I don't think that's how YOU intended it to come across. But that's how developers could feel, reading it (at least initially). I think you were recommending that you move to a newer API (which if we could, we would but that newer API doesn't support what we are doing).
I consider App Development to be a creative field and I think you touched on this in your previous post. The fact that developers are quick to ask if this bug is a sign of future deprecation speaks to the fact that they have probably been burned before.
Apple has to focus on how an issue impacts users, not individual apps. A bug that breaks 1 app with 100 million users is a much bigger problem (for us) than a bug that breaks 100 apps with 100,000 users.
This makes a lot of sense. We all have to prioritize issues and user impact is very important. However, I've reported countless bugs over the years (many of which are low-hanging fruit which you should be able to fix in 15 minutes but often never get fixed). While I don't have 100 million users, I imagine that such low hanging fruit impacts a lot of regular users across many apps (many of whom don't even know how to report bugs to Apple). You can't reasonably expect us to keep filing bugs if you seem to never fix them, at least not in a timely manner (presumably because we don't have millions of users).