It isn't about fashion or attacking minority groups. It is about an arson attack which didn't kill anyone. This happens in the U.S. on a daily basis. Mostly to Christian churches. When this happens and I read the story it never says "terrorist attack", it says "arson attack". It is a matter of semantics in many ways, but I don't think there is some orchestrated effort to not use the word "terrorism" because it was a mosque, since it happens quite often to Christian churches and the word isn't used in that context either.