It costs the CEO of Mozilla nothing to make hard, convicted statements that all their users agree with. If it was me, the quote would be something like "but then they'd need to find a new CEO, because I'd be in prison for what I'd do to anyone who even suggested it".
Literally the only people who talk about Mozilla, or read things about what Mozilla is up to, are unusually motivated power users who really, really care about ad blocking and privacy. They may still have other users, but those people are coasting on momentum from when their grandkid installed Firefox on their computer years ago. They're not reading interviews with the new CEO. Yet Mozilla seems to consistently fail utterly at messaging to their only engaged users.
It's not even that they're doing evil shit, they're just absolutely terrible at proclaiming that they are committed to not doing evil shit.