This seems more like a matter of having more tooling because 99.999% of programming has been text based.

If we spent the time building tools for visual coding it’s possible we’d be able to do way more.

Just thinking about diffing for example, it would be much easier to see which nodes have changes in the whole codebase by just highlighting them red. It’d be easier also to depict something like “the flow for this process changes from this to this”