That sounds very similar to LabView (aka. G)... Have you ever tried programming something complicated in LabView? I'd almost rather write assembly.

Professional programming is about managing complexity. It's about putting thousands of man-hours into one single project with a dozen of different people without anyone's head exploding.

Light-table could have potentially been a huge help in the constant battle with managing complexity.. It's an area that has need some serious development (virtually nothing substantial has been added to IDEs in the past decade). But instead you're going to create a beginner friendly monster.

This is the opposite of progress