I think the cost of prototyping has definitely gone down.

Developing production grade software which you want to people to rely on and pay for it is not gone down so much. The "weak" link is still human.

Debugging complex production issues needs intimate knowledge of the code. Not gonna happen in next 3-4 years atleast.

These tools do two things:

1. Rob one’s understanding of the design and implementation

2. Give the unqualified enough confidence to contribute