Amazon, MS, Google, Apple, etc. rank among the most wealthy companies in the world and they've each had to deal with internal pressures where their employees voiced concerns about certain things or where there was some kind of whistle blower situation. And they each dealt with it in their own ways.
IMHO firing whistle blowers is the kind of action that should be called out as very negative and not something to be apologetic about.
So, I admire what Tim Bray is doing here and fully understand that he's having a hard time justifying working for what he's diplomatically not quite calling out as aholes; though the undertone is quite clear.
Of course as he is pointing out, he's in a position where he can afford to do so financially. But then, being able to and actually doing are two things and he's showing some back bone here by 1) walking away and taking a hit financially, and 2) writing about it in the hope that leadership steps up and acts to correct the situation: compensate individuals affected, offer to rehire them, and discipline executives involved in pushing this through. Unlikely to happen, but one can hope for someone with a backbone stepping up. It would be the right thing to do. At the minimum, they've just been exposed for what they are and that might have consequences elsewhere for them.