That sounds to me like a domain issue on the hosts end. Maybe the thing got nuked and they didn’t have a newer version saved. Also, it is possible that the site is being managed by multiple parties across the globe and that the one to manage the skill tree and character sections basically had no better version after the newer version of the skill tree site got wrecked.
I know that they are still uploading trailers and corresponding articles but the frequency of new content is very slow, so there really is barely any need to set people up just for that. So it’s possible that they don’t even know about the state of the character builder.