Professionals????
Flying blind
There are lots and lots of GA pilots who are professional pilots. In Australia there are probably more professional pilots working outside the airlines than there are airline pilots.
And by "professional" I mean commercial pilots who are employed full time flying aircraft for a living, and doing it well. Many of the GA aircraft are "Commercial" aircraft, engaged in commercial operations.
Big city dwellers and the general public are generally not aware of this, and only see training and recreational flying.
There is much more than this, and there are many airfields where GA and RPT aircraft operate on the same tarmac, and use the same terminal building.
We all use the same runways.
A "GA only" ASIC is not practical. Unless we want to have to get and carry two of them.