What makes a mobile camera so awesome is the built in image software processing. The scene modes make it easy for the average joe to get instant results, from what is actually rubbish camera hardware, similar to those from a DSLR/mirrorless system*, which has had time spent on it in post processing.
As this software improves the divide between systems will reduce to a point where lugging around anything that doesn’t fit in your shirt pocket, mostly pointless.
The other reason why current phone tech produces photos that appear to look so ‘good’, is the majority of people are using the outputs solely for social media. If they printed a large print for their wall, or a photobook, the results would be less impressive and it would be easy to see which came from a phone or high end camera.
* At screen resolution.