Changing defaults is bad enough, but not giving users a choice to change them back is incredibly frustrating, especially for a device with such a diverse range of users and use cases.
Apple (and Google, in their own way) seem to think they can push users towards a lowest common denominator use case. It just doesn’t work.
Take “Do Not Disturb While Driving” for example, which kept activating when I was taking the train. I don’t drive. I set the option to manual yet it still continued to activate whenever I moved above a certain speed. I feel like the folks at Apple have decided “well, since we all drive, it’s probably true of most people”.