Even if the real origin is identified, that news piece will have much less circulation that the initial suspicion that it's Chinese. So there are also PR reaso

Even if the real origin is identified, that news piece will have much less circulation that the initial suspicion that it's Chinese. So there are also PR reasons to create a fake trail. The best lie confirms your confirmation bias. Everybody heard about the Chinese hackers attacking US, Ugandan hackers however would raise a few eyebrows.