First things first: a simple search for "anduril nixos" shows that NixOS and Anduril Industries (defense technology) have been entangled for years.
So, pretty sure there's plenty history & dissent here, but I never dived into it.

In detail this looks like just another community drama, but when you zoom out a different picture emerges: commercial interest, a will to silence dissent (and I will give them the benefit of the doubt that it isn't for ideological reasons but simple worry about money). The Enshittification of a distro. With a military/fascist twist.

Here's an interesting detail:

Unfortunately, the Constitution does not provide a meaningful recourse to SC overreach

So they have a flawed "constitution" which - judging by its name - should supersede the steering committee. It's not like it's really a constitution though, with all that would entail. It sounds more like, hm, "communitywashing" to me. Still, I wonder if they're willing to take that colorful terminology one step further and make an amendment to said constitution.

So yeah, political bias and unilateral decisions.

I've always been leery of NixOS, and I mean since they started pushing it over a decade ago, always claiming it's revolutionary better than $STANDARD_LINUX_DISTRO.