<tinfoil hat area>
Thing of course is (again) a question of "who do you trust most?"
Is this great if you're on some dodgy open network (Hello hotel! Hello Starbucks!).
If I'm @homebase, I must admit that I trust my ISP and the legislation in my country of residence much, much more than some, activated by default US third party.
<recycling tin foil hat>
Then again, if for example my uni starts offering DoH servers...