I think what makes visual programming like blockly and scratch great is that you can actually see the restrictions of various constructs like loops. The visuals

I think what makes visual programming like blockly and scratch great is that you can actually see the restrictions of various constructs like loops. The visuals are just a lot less intimidating then just seeing a bunch of seemingly free-form text where the rules aren't as obvious. The main immediate downside that I can see is that normal programming refactoring tools are probably not going to work... yet. I feel that this is a big opportunity for AirTable, MS & Google (for their Office software), and Salesforce to look into. Maybe once AR and VR really take off, visual programming will have a major professional revival.