You're speaking in bland hand-wavy generalities and like I said before I'm not sure you understood the issue or even read the write-up since you're not really addressing it specifically (it's a whole lot more than 'leaking'). To extend the analogy, this is like having bike engineers build an mvp supersonic jet and you find out they are using bike brakes to stop the thing. Its not even just merely an error its about some very questionable architecture. This is not a mozilla innovating the browser and making the mistakes you get when you're experimenting-and-innovating-something-new type situation at all and it has nothing to do with paranoia or five-eyes lol.
