Gaming site Kotaku has a comment on the Thunder's name misspelling as well:
NBA 2K13 Misspells Oklahoma City’s New Uniform | Kotaku
"The shirts aren't yet in the game, assuming 2K Sports doesn't pull this back. Oklahoma City has only its home and road jerseys under the latest title update for 360 and PS3) So I don't know how people are getting their hands on these screens. I've pinged 2K Sports for an explanation and will update the post when they give one. Until then, I'm dumbfounded. Flabbergasted. Thudnerstruck, even."