In the article they actually state they believe it is actually better to have the keys included and not rely on some method of inserting them.

After this situation blew up, we received many requests, and even some demands, to remove all Wii keys from our codebase. We're disappointed that so many people on YouTube and social media didn't even consider that maybe the team had done their research and risk analysis before including the keys, and just assumed that now that it was "pointed out to us" we would remove them. However, we do not think that including the Wii Common Key actually matters - the law could easily be interpreted to say that circumventing a Wii disc's encryption by any means is a violation. As such, it is our interpetation that removing the Wii keys would not change whether the exemption in 17 U.S.C. § 1201(f) applies to us or not.

In fact, we think that offloading decryption tasks onto a potential 3rd party application would make the situation worse for everyone. As such, we believe leaving the keys as they are is the best course of action.