I was working at Mozilla when she made this comment -- shortly after laying off ~25% of the fucking company -- and it was the final straw for me. I can't speak to whether it was the final straw for others as well, but I can say that in the span of about 8-9 months after those layoffs every single person on my team, many who had been there 5+ years, quit and took "normal" tech industry jobs that typically paid 2-2.5x more than Mozilla. Apparently in Baker's mind it's OK to ask the people doing the actual work to take a massive discount to their compensation for ideological reasons, but when it interferes with her lavish lifestyle it's suddenly unthinkable.
She is truly an anchor around Mozilla's neck, and at this point I've just sort of grudgingly accepted that she'll only leave once she's drained every last drop of blood she can get from the company and from the well-meaning and dedicated people trying to make a genuinely independent web browser. All I can hope is that some sort of phoenix (get it?) manages to arise from the ashes when that finally happens.