OUTCOME OF THE STORY. After receiving public petition I mentioned earlier, Russian CAA finally acted upon this incident. They ordered Aeroflot to conduct investigation. Aeroflot swiftly assembled committee and on 28'th of May concluded:
1. There was indeed a violation of Aeroflot SOP (crew and ground personnel made a wrong decision not to conduct de/anti-icing of aircraft after overnight stay with snow precipitation)
2. Amendments were made to Aeroflot SOP regarding de/anti-icing procedures.
3. Captain of the flight was demoted to First Officer.
4. Other personnel received various disciplinary sanctions.
That's 6 months after actual incident and 2 months after initial reaction of Aeroflot and Russian SOP that there was no violations
More info (in Russian) on
link