It feels almost coordinated to get you to feel like all companies are compromised, so you should just use the popular thing and forget about privacy and security.
People are criticizing Mozilla for the ads, tracking, and AI stuff. The stuff Google does. Criticizing Mozilla is not an endorsement of Google, in fact quite the opposite.
We're all glad to see Mozilla have a win, at least I assume so. But there's been a lot of other much bigger decisions that have gone on recently that make us (at least me) hesitant to celebrate at the first good thing.