It's because it's Oklahoma. How often does anywhere in Oklahoma implement progressive SJW policies?
It's Anadarko, not OKC - your equivalent would be the headline "Minnesota town bans teaching of evolution" and the town being Prinsburg. Though, given the specifics of the town involved, "Minnesota town abolishes Columbus Day, replaces with Leif Eriksson day" would also work.
Leif Erikson day is On Friday thank you very much. And there is an argument to be made over remembering the Norse felon who tramped around Newfoundland over the Italian idiot who never stepped foot in North America.