Your argument might be only applicable to some sort of fundamentalists. Most people in the real world make informed decision based on lots of different factors. I'm pointing out that Apple speaks like a security fundamentalist but doesn't act like such. They should choose either one of being fundamentalist or realist, not cherrypicking whatever traits that work in favor of themselves.

Not everyone makes their own device choices. Or they didn't know the problems involved yet when they bought the device. Or there could be a thousand other reasons.

I share the GP's view and I use an iPhone because I must have access to iMessage and there is no alternate way to do that.