yes why did visual programming never fully took off, its somehow like vr ;)
it is like QC or touchdesigner, but you can distribute your projects on your own, without cables itself. basically like you can distribute a game you made with unity.
Not everything can be made into a one way graph with limited data types. Node graphs work in specific domains because they only have a few data types and don't need to worry much about side effects, ordering, branching, state and IO.
On top of that you also need a good GUI which itself is rare. Houdini has a great interface that is well designed. Touch designer is much more wonky, loose and awkward.
Most designers on the game industry, sound composition, or electronics would be to differ, but maybe only having three industries that embraced visual programming is too niche. :)
I was always amazed at how sophisticated QC was, and also saddened when it was abandoned by Apple...