The change here isn't that the organization is becoming political, it's that the organization's politics are becoming increasingly intersectional.
The GNU Manifesto has a whole section, "Why GNU will be compatible with Unix", that briefly explains why RMS chose Unix. In it, he fairly explicitly states that Unix is not his ideal software system, but it's a good choice for advancing GNU's political goals. In other words, the politics are considered at least as important as, and perhaps more important than, developing quality software.
It is bound to happen to any movement that outgrowns its grassroots, while those that achieve their positions thanks to the movement betray it.
What is happening is a compliance test. You are only tolerated if you agree and comply with the woke politics of the day.
>safe and welcoming environment for all, regardless of gender identity and expression....
So it's for all but not for you (RMS)... ;)