This isn't some regular contributor. They appear to be one of the most important Home Assistant maintainers and a Nabu casa employee. This contributor is also the author of many release note blog posts such as this one
https://www.home-assistant.io/blog/2025/01/03/release-20251/
Home Assistant may be developed with financing from Nabu Casa. Nabu Casa receives money from partners, from people who buy their products and from those who pay for their cloud subscription. They also rely heavily on countless other Python packages developed and maintained by people they don't pay. Other people make significant contributions to Home Assistant and to its web UI.
I'd expect them to run this project as an open source project and handle such situations with a bit more grace, even more so for someone with such a high profile such as frenck.
They'd have the right to get angry if someone distributed a paid product which didn't include FOSS code from third party contributors or FOSS dependencies. This isn't the case. They use a lot of FOSS code from countless people already for the Home Assistant core, for the frontend and for the Home Assistant OS.
All of the time spent dealing with such needless drama could be better spent living one's life and doing something more meaningful for everyone.
