I think we'll take the word on the director in this case.
And like Stronglikebear, I'll sarcastically agree that those darn stunt doubles! How dare they do their jobs and actually do stunts.
How dare Mark Ruffalo use a CG Hulk rather than do the work himself, the guy should be pumping steroids and hitting the gym - he's robbing us of a true Hulk!
Should I mention Hugh Jackman, the man nearly got seriously injured or even killed while filming The Wolverine and now he says he's going to be smarter about using a stunt double - be smarter!?! No, Hugh - you're already way too tall to be true to Wolverine and you don't have a Canadian accent... and now you're going to start using a stunt double more often!?!? How dare you, you should continue to risk your life to please us - how dare you not use a Canadian accent and how dare you not cut your legs off or do something to make you appear the right height for Wolverine.
:lol
Btw, here's some footage of ScarJo's "stunt double" doing some prep stunt work for IM2 - they got one heckuva stunt double, it looks just like her:
Iron Man 2: Scarlett Johansson Kicks Ass Behind the Scenes (Broll) - YouTube
I'm glad you clarified that "all that fighting and flipping" wasn't her because that footage would've fooled me.