Let's think of the other extreme as well: exactly the same excellent VPN service, is run by an almost-the-best-person-in-the-world who has just one small quirk that makes them not 100% perfect for you (they pat kittens not as often as you'd like them to do). Obviously there is a border between your extreme and mine, which border defines "use" and "no use" cases for you. And now: wherever this border is - should it be the same for everyone?
Just like everything else in life, different people have different borders and that's fine.
I don't understand the point of this thought experiment. Are you trying to disqualify the idea of boundaries because they're imperfect (which is a very flawed argument) or are you going somewhere else I can't figure out at all?
Let's think of the other extreme as well: exactly the same excellent VPN service, is run by an almost-the-best-person-in-the-world who has just one small quirk that makes them not 100% perfect for you (they pat kittens not as often as you'd like them to do). Obviously there is a border between your extreme and mine, which border defines "use" and "no use" cases for you. And now: wherever this border is - should it be the same for everyone?