The correct standard word / phrase etc. for this and many other things changes all the time, sure the term "Sexual Preference" (now offensive according to whomever) was used by everyone until recently - He who controls language controls the world.
This is from Alice in Wonderland:
“Must a name mean something?” Alice asks Humpty Dumpty, only to get this answer: “When I use a word… it means just what I choose it to mean – neither more nor less.”
Racism loses its meaning when everything gets labelled as such, same with bigotted, sexist etc.
All of the above are serious problems, but not everything falls into that category, and I don't believe this instance showed racism.
This is my opinion and interpretation, you are of course free to disagree with me but there is no ill intended by my comments.