Personal opinion - He probably would've hated it at first, but came around. It really is a great redesign, Beta 1 is doing really well and aside from a few UI tweaks and some iPhone 4 bugs, I think it's pretty damn amazing. It's a good step forward, I think Steve would've realized that.
This I agree with. It is clear they released this beta at a much earlier stage than previous as a response to increased scrutiny and a overly quiet 2013. They decided they could not wait to show something new.
iOS 7 in it's current form would NEVER have gotten Steve's seal of approval. It would look like iOS 6, Forstall would still be a the helm, and some of the current new functions probably wouldn't have made it (Control Center I'd wager to be one). Green felt and leather stitching EVERYWHERE!! All those poor digital cows!
Then instead of whining about the icons, there'd be whining about how it looks stale and boring.