Author mentioned compliance. He likely is an untrained engineer in the eyes of the organization owning the codebase. Working in a medical company I recognize this. You can get write access after you followed all necessary trainings. Part of those are for regulatory reasons, part of those are added by the company to make sure new people don't make a holy mess of a (central) platform codebase. Most of time people coming from outside the platform group can't oversee the impact of their changes. They think of implementing the feature but don't know the history of the codebase, forget to add tests (or add at the wrong place in test pyramid, do not check execution times, etc), requirements, design reviews, FMEA, SW BOM updates in case 3rd party is used, fix quality tool reorted issues, link tests to the requirements, update design documents and portals, communicate breaking changes, if any, etc.
That is assuming the extension is actually desired. If everybody would start adding their little extension to a central platform before too long your platform is gone and instead you end up with a mono-archive that has no clear owner, a variation for every business unit, and so many possible configurations it can no longer be maintained.
Probably it is not that contributions aren't welcome but the author must be trained, given access and the team owning the code must be made available to support. After design discussions the author should implement end2end but likely is not allowed to modify requirements and access some of the other tools to make the updates. So owning team must be made available to do that work. The owning team is likely not paid to smoke cigars with their feet up so Q1 2022 is their proposal. I've seen worse.
That is assuming the extension is actually desired. If everybody would start adding their little extension to a central platform before too long your platform is gone and instead you end up with a mono-archive that has no clear owner, a variation for every business unit, and so many possible configurations it can no longer be maintained.
Probably it is not that contributions aren't welcome but the author must be trained, given access and the team owning the code must be made available to support. After design discussions the author should implement end2end but likely is not allowed to modify requirements and access some of the other tools to make the updates. So owning team must be made available to do that work. The owning team is likely not paid to smoke cigars with their feet up so Q1 2022 is their proposal. I've seen worse.