I mean text that approaches natural language if not natural language. I think something like Inform 7 is far more likely to be adopted by that audience than a visual graph that is just an abstraction of loops and functions. I think the benefits of a textual language matching a domain are much greater than a general-purpose visual programming language.

If it targets, say, a visual learner, I think a graph language won't help unless they are already visualising the program as a graph.