I think this has been the case in a lot of elections. When Nixon beat McGovern or when Reagan beat Mondale, I don't think we had a lot of swing states. So all it means is that one candidate is much stronger. Americans don't like that, so it would swing back eventually, or in a more extreme case the more powerful party would eventually splinter.
Eliminate the racist "Chiefs" nickname and become the Kansas City Ermines. It's time, people.