One of the great things about Tony Stark is that his genius was something he developed. It wasn't a superpower, he wasn't born with it, he had to work hard at it.
This new origin has completely trashed that.
The idea of Tony's intellect being something that was done TO him rather than something he did FOR himself was so terrible when Orson Scott Card did it in Ultimate Iron Man that it was promptly retconned, so I have absolutely no idea why Gillen or Marvel would think it should be tried again.
I wonder if DC will follow suit and reveal that while Bruce Wayne was in the womb, the knowledge of Sherlock Holmes and the fighting skills of Bruce Lee were implanted into his brain.