https://bugs.freedesktop.org/show_bug.cgi?id=91600
--- Comment #4 from Henri Verbeet hverbeet@gmail.com --- (In reply to Chris Rankin from comment #3)
It appears that Wine isn't using Mesa's OpenGL 3.3 core profile yet:
Creating core contexts should work fine on Wine, but WoW may not be trying to create one. (Since you'll get the same functionality in a compatibility context on proprietary NVIDIA.)