I think the core of the issue is that real problems contain a lot of complexity, and code is still by far the most efficient way to encode complex logic.

For instance, I've done some work with node-based editors like Node Red and Max MXP, and while they are nice for simple cases, invariably they reach a tipping point where you end up with a giant graph which is far less navigable and comprehensible than a set of source files.

There's no escaping complexity.