Why would it be more successful than the past countless efforts to make that a reality ? (it could as well be, but why do you think so?)

As a more simple problem space, building programs from UML charts was one of Java's promise, and it failed miserably, not because the technology was lacking, but because it's just a damn hard problem.

As of now ee have nothing approaching "non technical people to be able to instantly create things" if the "things" you want are useful in any way.