I think it's an interesting topic/possibility because at the end of the day, small sensors are most limited by their DoF flexibility in practical usage (acknowledging that 'small' is a subjective term here). Every other area seems to constantly improve, but in everyday usage, the lack of DoF control in small kits seems to be the part most limited by physics.
Asking non-rhetorically, what other options do we have besides software to achieve that sort of look in a small body? Super-mega-hyper-refractive glass? Personally, I just think having the option, especially if implemented as seamlessly as possible, is better than not having it at all. And while I doubt I'd be putting it to much real use anytime soon myself, I do wonder whether I will be saying the same thing in a decade, should the technology take off.