I agree with you but I think you miss part of the argument. Yes there's a very small number of users who are that proficient but even those who are would have

I agree with you but I think you miss part of the argument. Yes there's a very small number of users who are that proficient but even those who are would have spend a monstrous amount of time to update the phone and make sure it works. Time built creating something that people will discard a year from now when they buy a new phone.