I agree with not having more night races for the sake of it. But it seems to me the only way to guarantee a super-cold race in Sochi, so I'd make an exception here.
Perhaps, but I would like it to be more unpredictable, otherwise it wouldn't but much different than the warmer races. Idk what the year round weather conditions are for that area of Russia but there is probably a time of year when the weather isn't super great, a cold wet Russian race would be pretty epic if not more epic than a dark cold race... (assuming that if it rained during a night race it would be red flagged due to visibility issues with rain reflecting the lights etc)