Embracing modders and those who use mods is enough, and not something we really had before. They've certainly always been aware of modders and CC makers, but they never went so far as to have checkboxes in the game menu, have a file set aside for mods, or make a forum for them.
But going from embracing to endorsing puts them at risk of liability. What if whoever they tasked with checking mods before they go into the game didn't catch something they needed to? There'd be some parent out there whose 13 year old used an adult oriented mod accidentally endorsed by EA and they'd sue. Or players would be up in arms when something they endorsed made games unplayable. It's much safer for EA to just say, use mods at your own risk and not be directly involved.
