I see this take all the time and it's absurd. You would have every new feature in a piece of software disabled by default? There's no conspiracy to game metrics with this, anything you would seriously consider shipping default-off you would just not ship.
I agree the take is absurd for this situation, because they wouldn’t give such prominence to a feature created by a random product manager or sales person.
That said, I disagree you shouldn’t consider shipping things default off, and Apple does it all the time for things which have tradeoffs, which is exactly the case here. This is a controversial feature that has been getting a ton of backlash, takes huge amounts of disk space, and is still treated as a beta. Asking first makes sense.