I'm not too bent about this. The goal is to celebrate the 50th anniversary of the founding of the AFL. The Chiefs were not founded in KC, they were founded in Dallas. So, if all the teams are going to wear uni's from their first AFL season, this makes sense. The Tennessee Titans are going to wear Houston Oilers gear, and the Jets are going to wear New York Titans Gear, so go figure.
Here's a very cool website that has helmets over the history of the NFL and AFL. I really like the old Washington Redskins Maroon Helmets with the spear. Florida State totally ripped that off:
http://www.instantreplaysportcard.co...elmets/nfl.htm