I think you had the Librem Social thing backwards. Purism removed the ability to report content (such as hate speech) or DM admins. Hence several other Mastadon instances either blocked, or called to block, the Librem One instances from federating because they don't want things like hate speech on their instances. Purism has since reverted the commit to remove reporting ability but several instances are still blocking the Librem instances.
Also, some of the controversy wasn't that they forked open source applications, which they're totally allowed to do. It was that there was zero information giving any sort of credit to the original authors. This isn't strictly against any license, but still feels wrong for this kind of community. This caused at least one of the original authors some headaches.
Finally, other bits of the controversy were that some of the forked applications included some tracking bits turned on, which for a privacy and security focused crowd, seemed off. In addition to a security vulnerability which was found shortly after release.
It's those things that raised eyebrows.
Edit: Re-reading my comment, I don't meant this in a negative light. Just saying what's happened so far with the community 🙂 Thanks for the videos!