If mentioning/naming something about/after Native American's or (fill in the blank) offends people despite its existence for decades, even centuries...then when you finally roll over or a school district or the courts roll you over...then for the sake of rewritten history...make sure you write the future so as to never offend. By ignoring an offended group you make them irrelevant...actions have consequences after all.
Want to hear greatness in action? My former High School, Meadowdale, changed its mascot name from the Meadowdale Cheifs to the Meadowdale Marauders. One Dictionary (Websters online)defines Marauders:
Main Entry: ma·raud
Pronunciation: m&-'rod
Function: verb
Etymology: French marauder
Date: 1711
to roam about and raid in search of plunder transitive senses : RAID, PILLAGE
Amazing...isn't it? Sure glad they decided "CHEIFS" was negative... wouldn't want to have a negative mascot :-(