Low-fi reporting

Why do so many general press articles about WiFi feel the need to explain that it stands for "wireless fidelity." It does, but only because the association with hi-fi makes the name catchy. There’s nothing special about the fidelity of a WiFi signal. CNN doesn’t feel the need to point out that DVD stands for digital versatile disc whenever they discuss a movie release, or that DirecTV satelite service stands for direct television, do they?