From another perspective, I personally believe knowledge of Unity/Unreal Engine would be more relevant as we move towards the future
If you really want to teach to beginners what programming means, you can use C2 just for making them doing a fun work but your risk is to let them believe it's always so easy. No syntax problem, the interface telling you everything etc. because when they will meet the hard reality of code, they can be disapointed too.
Gentelmans. Don't be ignorant . Remember how it all started? First it was about setting bits with 0s and 1s. Then we recieved another virtualization which was Assembler. Still everybody dreamed to make soft easier so finally we got human readable programming virtualizations like ANSI C. Next step was OOP paradigm, design patters, frameworks, programming IDE tools which done some things for us and many other things along the way and up.
So we are doing still the same thing just using new virtualizations of programming itself. If you meet a hardcore programmer from '70s he could say "Oh man, you use mouse and color monitor to highlight syntax? - you're not a real programmer!" . The times change. Drag & drop programming like here in C2 is not something for kids to play. It's just new thing which will get more and more popular. Other engines started to build their drag&drop systems now as well... as Godot for instance which announced recently that they want it as well. Unreal engine has it as well if I'm not mistaken.
Anyway this is the future. All of you who are working with tools like C2 you are precursors of modern programming. Almost no one code with Assembler these days and there will be time when no one will code with regular programming language. That's a sure thing. Just need a time to let technology get steady. Right now we have some performance issues etc, but VERY soon this will not be a problem - you know that.
So if you ask me what is the future? I say that a tool of the future is the one which gives the same result in smaller amount of time. Remember when Ruby language popped up? Everybody were like "WTF is this?!" It was some weird language without semicolons, very heavy etc. But you could do things ten times faster than with other languages, and it got popular in result.
C2-like engines are the future. Not discouraging from learning other engines and coding - it's always good to know as more as possible. But C2-like engines are the future for sure.