I’ll start this discussion with some background…
Under the original Eclipse Foundation Intellectual Property (IP) Policy, every bit of third party content needed to be thoroughly reviewed before it could be used by an Eclipse project. And the reviews were thorough: license scan, provenance check, scan for anomalies, … Reviews of third party content literally took days, weeks, and months. All of that review needed to be complete before the project team could commit any code that made any reference to that third party content.