Do you’ll think Flowchart Based robot programming software tool for Lynx -5 and Lynx-6 would help in learning robotic application?
The answer to that would depend significantly on the quality of the interface. Flow charts can make things very clear and simple and they can also confuse you more than some decent sudo-code.
That being said, I believe Lego Mindstorms uses flowchart-like (block) programming. I can’t say for sure, since I’ve never used it, but I remember seeing stuff about it on their website a long time ago.