What is "political correctness": to think that you can change reality by changing words.
Well, in some cases it may be true, because name calling has been known since ever. And since ever it has been reprimanded.
However, a blind man is no less so if you call him "not seeing".
And present day terrorism doesn't cease to have its well known matrix if rather than calling it "Islamic" you simply qualify it as "violent".
Was it this the "change" promised?