As an avid smartphone photographer whom edits and publishes images on open or closed social media shortly after the images where taken I’ve always been a little amazed that my “serious” cameras couldnt do this....
Well the smartphone market is much larger than the ILC market, and thus there can be much more resources put into software development. Also people don't seem to demand that a smartphone boots in a split second (it takes tens of seconds or even a minute), or that it often becomes unresponsive and doesn't do anything until a mysterious pause of 10-30s is over, or that it crashes periodically. I get that both with my iPhone and with my Android-based TV, but not with my Nikon cameras. Nikon likely write all the firmware code in house and have complete understanding of it (whereas if you make a camera around Android many people will have contributed to such complex software and thus no one has complete control over it in practice). I would not want that kind of lack of responsiveness, frequent crashing etc. to be present also in my camera that I see in my Android and iOS based devices.
Running a mobile phone operating system on a camera would no doubt allow it to be used like a mobile phone in terms of direct access to social media, email, and other applications etc. Obviously it would need a SIM card and contract if you want to send images from anywhere. I prefer the camera to run a software which is responsive, doesn't crash etc. and gives the user full control of the timing of shots, even if the functions are limited in terms of how the images may be used without a computer or mobile device.
We live in the now, when I post last weeks images from home my friends think I’m still abroad 
Sometimes I send a few images to friends via Snapbridge and my phone, or via a laptop and phone, on the same day that I captured the shots when traveling. I don't see this as an issue.
Snapbridge has worked fine on my D850 though it is slow. I have read initial comments from Z7 users that it is now fast in those cameras, so we can expect the improvements to trickle to newer DSLRs, I should think.
In fact I think a little inconvenience is a good thing because having to work for it reduces the likelihood of sending too many images in the excitement of things. But, without doubt these inconveniences will eventually be solved and then there is no stopping people from being drowned in images from friends.
Back to the topic of the Zeiss camera, I think it is quite large and heavy for a fixed lens fixed focal length camera.
