There's no need to belittle dataflow graphs. They are quite a nice model in many settings. I daresay they might be the PERFECT model for networks of agents. But time will tell.

Think of it this way: spreadsheets had a massive impact on the world even though you can do the same thing with code. Dataflow graph interfaces provide a similar level of usefulness.

I'm not belittling it, in fact I pointed to place where they work well. I just don't see how in this case it adds much over the other products I mentioned that in some cases offer similar layering with a different UX. It still doesn't really do anything to help with style cohesion across assets or the nondeterminism issues.