What this professor is proving out is that open source and (likely, other) high trust networks cannot survive really mendacious participants, but perhaps by mistake, he's showing how important it is to make very harsh and public examples of said actors and their mendacity.
I wonder if some of these or other bug contributors have also complained that the culture of the project governance is too aggressive, that project leads can create an unsafe environment, and discourage people from contributing? If counter-intelligence prosecutors pull on this thread, I have no doubt it will lead to unravelling a much broader effort.