The official parts that need fixing are old ones. Some of the parts you listed date back to the 90s and the standards have become stricter since then.
The unofficial parts are parts that are sitting in the parts tracker for the certification process. They're submissions of new parts and fixes to official parts that aren't yet approved.
The unofficial parts are parts that are sitting in the parts tracker for the certification process. They're submissions of new parts and fixes to official parts that aren't yet approved.