> but what’s mainly happening here is that it is simply a matter of bad judgement ...
Only if you assume either that his position is so wrong that it could not be held by a reasonable person, or that he shouldn't speak or act on his position in any public way. I consider both of those assumptions to be highly suspect.
> ... and people objecting to the appointment because he's unfit to lead an org like Mozilla
That is exactly using this as a litmus test.