Do you know how else you can do that? by opening the door. We need to stop "innovating" features that absolutely no one needs, because clearly the result isn't a better product, just a messier, more complex one that is frequently over-engineered and under-supported.
I imagine a scenario in the future when all fridges have it, like all TVs now have smart features. Of course it will sold as "check fridge while you are at the grocery store" feature.