It's not a good faith agreement if "we agree to do this only so long as the setting to enable it is in the sub-sub-basement of the browser locked in a closet marked 'Beware of Leopard'". If it wasn't "oh no a browser enabled it by default" it would have been "oh no a tutorial went viral on social media telling people how there isn't really a leopard and that everyone should just open that closet and click the button", because again the excuse doesn't matter why they stopped supporting it they never planned to support it for more than the theory of it. There's always some other excuse. It was only ever a "heisenberg feature": it can either not be used or it could just not exist. I'm saying it's not possible at all to design a "heisenberg feature" like that in any possible definition of "good faith". If it wasn't designed to be used by even a paltry 5% of users at the time they balked and stopped supporting it, it wasn't designed in good faith. There's no way to look at that and think they meant anything about any of their promises when they said they'd support it.