The keys would be something other than those, though. They would be: CTRL+\ for file separator, CTRL+] for group separator, CTRL+^ for record separator, CTRL+_ for unit separator. Other than that, it would work like you described, I think.

> But, like many problems in tech, the popular advice is "Everyone recognizes the problem and the solution. But, the problematic way is already widely used and the solution is not

This is unfortunately common. However, what else happens too, is disagreement about what is the problem and the solution.