I think you subtly missed a point, it's not so much about visual programming, it's about interactive programming on a 2d display. I remember there used to be

I think you subtly missed a point, it's not so much about visual programming, it's about interactive programming on a 2d display. I remember there used to be a bunch of programming languages where code went into an environment / repository and could be interacted with (like smalltalk). Visual programming was just one attempt at creating interactive programming on a 2d display... Today in the web world, everyone is kind of chuffed we have this thing called "hot code reloading" which is slowly getting back to that idea of coding in one space on your screen and instantly seeing the result in another space on your screen