In this piece she takes a clearly partisan stance with regard to "Trump" (between quotes because the stance is against the "movement", not the person) and calls for censorship - disguised under vague terms like Turn on by default the tools to amplify factual voices over disinformation. No matter whether you agree with Baker or not it should be clear that a pro-censorship stance coming from the head of a browser company is a bad sign.
I'm a die-hard Firefox user and not a resident of the D.S.A. but that does not mean I won't be affected by this type of activism. If Baker and her ilk go beyond their current promotional activism - from pride-month themes to "voices of colour" extension suggestions - to actually embrace the censorship she seems to desire I'll jump ship. Not to Chrome or Safari or anything like that, probably to one of the de-fanged Blink-based browsers like Bromite or Ungoogled Chromium.
What does this mean?