There is already a way to make the background blurred it's called opening up the aperture. But just saying make the background blurred is meaningless, how blurred, how much light is there, what effect are you trying to achieve. Is Siri supposed to magically understand this without you telling her? A touch screen for zooming is also foolish, it would make it impossible to zoom while keeping your eye to the view finder (which is what actual cameras have not just a screen).
The reason you don't get "professional images" from non "professional" products is because what really makes an image professional is having a basic understanding of what you're manipulating. It's more about the photographer than the camera (within reasonable limits)
And it's not always about getting the "best" image it's about manipulating the setting (aperture, shutter speed, ISO, lens etc.) to generate the image you want.
Attempting to "simplify" this process is just stupid and redundant, if you wan't to take a good quality image without learning the basics you already can, the technology is here. Point and shoot cameras take great photos, hell smart phones take great photos.
But if you're aim is to let non-pros take pro photos you're wasting your time because you've already removed the critical element (ie* the pro).