Maybe the engineers did not go through a 12 months process with their legal department and did it wrong.
And with the bad publicity coming back to Microsoft, maybe those engineers will now understand that they should just avoid re-using open source projects when possible. And the next HN post will be about "BigTech reinvents the wheel in order to have control".
We're all nitpicking here: they mentioned the original project in the README. Peerd is quite different from Spegel, it's not just a copy with a small patch.
Sure, they should do it right. But really, a polite, small PR fixing that would probably be a good first step.