I don't necessarily agree with this action, however in regards to the PC police get used to it. Our society is evolving. Not being racial but I want to point out a historical fact. White males in this country were the predominant social and power structure since the beginnings of the republic. Therefore terms they used to describe people or even nicknames for sports teams were acceptable. Other members of society including women in general and women of color in particular had virtually no say in the matter.
Now that power structure is gradually eroding. Accordingly, people that once had no seat at the table are now flexing their political muscles. So we're becoming a more culturally sensitive nation. Be it for good or ill.