Assuming that the Russians put out the story that Snowden spent 2 days in their consulate in Hong Kong in June 2013 as a diversion, what was the diversion for?
If they had prior contact with Snowden or Wikileaks or someone to arrange their taking him, then they could use the consulate overstay story to divert attention from that prior agreement.
Russia might not have known who the person was. They might have expelled Americans as CIA agents from Moscow without knowing who they would get as a whistleblower guest.
Wikipedia or someone could have arranged that.