> Those graphical programming interface all end up miserably.

This is factually not true. There are a number of fields where graphical programming interfaces have a long history of success.

This isn't really a graphical programming interface. The stuff inside of the blocks is code that's deployed separately and does a thing. There's a graphical thingy that allows you to describe state transitions between those blocks of code but you aren't really programming.

False. By a long shot.

Just look at LabVIEW & Operations Orchestration.