I’ll admit, this made me smile a bit despite how much of a PR mess that incident was.
Currently I’m in the process of doing a fresh install on WoW, so if the issue is just a matter of textures that somehow did not get downloaded or an addon acting up, that should in theory resolve it. I’m not really getting my hopes up that a reinstall will fix it though, as it seems others have tried that already. It really does seem like a problem specific to AMD processors.