Clearly you need to register each bean on a blockchain to be sure of its organic provenance; then you can grind, destroy, and turn them into a Non-Fungible Brew.
The predecessor (the percolator) was invented 150 years earlier and still has a dedicated following today, and then there is the cafetiere. Both of these do not have any waste other than the coffee grounds, which I think is a big point in their favor. Oh, and no DRM either, nor any subscription components. I guess for the manufacturers that is now a point against them.
That's kind of my point, you said it was a solved problem. This is obviously not about just making coffee, you were misrepresenting the problem being solved. Convenience is a thing. If this coffee could be made and delivered on the spot exactly when you want it then this service wouldn't exist.
I meant that the other way around from how you wrote it. As in: you probably can make coffee well within the time that it would take some service to make it and deliver it for you, and likely your locally brewn coffee would be hotter.