That's completely false, it's a partial code adjustment. NOT a complete engine re-write, that's a complete fallacy.
It's a simple render priority fix and a few other minor adjustments. It's not that big of a deal to adjust. I can assure you. It's something that every major company that wanted to add Hardware AA had to do.
As professionals, they're entirely aware of the process needed to do this, well within their capabilities.
