The designer’s intent for Micro Four Thirds has been so badly distorted by marketing, the system no longer makes any sense.
In the days of the Panasonic GH1, there would be never any question of simply sneaking a small sensor into the body of a full frame camera and calling it a day. This was never the ethos of Micro Four Thirds. Yet that is exactly what Panasonic have done with the G9 II.
In fact you can trace back the system’s decline all the way to the GH3.