What point is there in using the photo if not to trick viewers in to thinking its a photo from the phone. What exactly is it illustrating? Its deceptive and wrong. I have no trust for a company that tries to trick its users like this.
The point is illustration of a photographic technique. If you simply say "The camera has a background blur feature" that doesn't mean much to most ordinary consumers or help them understand why they might want that feature. If you say "Here is a photo with background blur" and "Here is a photo without background blur" they can instantly understand its value. The fact that they deliberately modified the photo to remove background blur should tell you there is a message they are trying to communicate here beyond "here is what our camera can do".
Any reasonable person expects when they are seeing images in reference to the phones abilities that the photos would actually be from the device itself. It would be very easy to just take photos with the device and use those but instead they chose to deceive customers knowing that most of them would trust it.
