They don't need any engineering/UX, they just need to stop locking down all the settings. Android and every dumbphone I ever owned had no problems with this.
Are the settings locked down or do they just not exist? Apple would have to create and test the interface, make sure it's not possible to disable your device with it, etc. Which is a small thing, but easy to miss when there's no obvious need for it (except, of course, a few edge cases).
