Seems like the niche between those markets never was large enough to warrant this functionality, given that both mobile standards and cloud service APIs change multiple times over the lifetime of a camera.
The gains from 2013 to today in the ILC market are much less interesting than 2003-2013 was, where we saw a pretty wild rate of improvement from the Canon 300D/Nikon D70 beginnings of a consumer market through to the modern era of digital SLRs.
My "daily driver" camera (olympus EM-1 MK II) dates from 2013, as one example of this, and still produces great results. The latest iteration of this model is not a quantum leap for most types of photography.
If I'm out shooting an event or something it's not uncommon for me to get 500-1000 frames. Multiply that by say 50MB each and that's a huge chunk of data at least for some cell plans.
I'm an amateur photographer though so it's not a requirement for me. Maybe a professional wouldn't mind writing the expense of mobile data off as a cost of business.
Even a 15 year old interchangeable lens camera with a lower MP sensor can produce better pictures than a phone, esp if you want to do things like background blur / bokeh which is not possible at all with a phone (though they emulate it in software).
Hell lately I've dug up an old Canon Powershot 12MP CCD digicam out of a box, and put a hacked firmware on it (that can shoot RAW and let you do proper manual control of the lens), and gotten really interesting results. That thing has a tiny sensor, but having actual aperture control makes a big diff.