That's a logical and plausible explanation for rational thinkers --I don't think I'm going out on a limb saying if it fit people's narrative preference, they'd say that "it fit too well", how can the Russians, so capable, leave so obvious trails, it must have been the Ukranians (or some other realistically unlikely but fitting a narrative).

The N Korea thing was the same even under Obama (the Sony hack) people wanted to believe the US was just trying to make the N Koreans "look bad" or create excuses for something (as if N KOrea needed any help in that regard).