> turning on/off certain features without the user's consent.

I think that in practice, that applies to only the privacy sensitive features. Would you be upset if suddenly they rolled out a feature that reduced battery consumption by 10%?

This particular case was obviously a bug, but I suppose every software manufacturer is continuously doing A/B testing, and 99% of time the user would not even notice. I would be surprised if Google was not doing A/B testing, and did not have the whole framework for doing it.