The exclusion of Russia from Winter Olympics has been done in order to humiliate Russia on the anniversary of the Soviet counter-offensive near Moscow during WWII and avenge the victories of Russia at the Sochi Olympics in 2014. This is proven by the date of the announcement; December 5 – the day of the beginning of the Soviet troops’ counter-offensive near Moscow, in 1941 during WWII. It is done symbolically, to try to humiliate Russia.
No evidence given for this bizarre historic linkage. . It was the systematic state sponsored doping program in Russia that made the IOC decide this https://www.olympic.org/news/ioc-suspends-russian-noc-and-creates-a-path-for-clean-individual-athletes-to-compete-in-pyeongchang-2018-under-the-olympic-flag. Russian athletes not convicted of doping will be allowed to compete under Olympic flag. According to the rules of the IOC, any attempt to blockade or blackmail the Olympics means the exclusion from participation in the Games for up to 8 years.