Apple, being Apple, seems to like putting their tech into something fun, since that's what Jobs had intended (computer for mere mortals, remember those sayings?)
For example, Apple used Photo Booth, a seemingly silly app, to showcase the Ax chip's GPU power. Then Animoji, a seemingly silly thing, to showcase the FaceID tech and that you have a motion capture in real time on your phone (something that requires a different set of tools in movie making). Same thing with computational Machine Learning and the Ax ISP prowess, and Apple showcase it via Portrait mode, something that seems silly. That's also how you get people to get used to the tech.
This is probably continuation of the machine learning and AR capability that Apple is developing. This is the simple application, but imagine being able to render real remote objects in real time into the same environment as you. That's quite sci-fi if you think about it.
