They need to have a well trained crew in order to operate it successfully. Not sure if they are even active, Azerbaijan destroyed an Armenian S-300 that was just parked and empty. Who knows maybe that downed Ukrainian SU-27 was shot down by a Ukrainian S-300, maybe Ukraine did actually down an IL-76? Who knows, it’s too early to know and the Ukrainians along with the west are putting out a lot of fake propaganda and disinformation such as Ukrainian recaptured the airport North of Kiev, ace Ukrainian pilots and a bunch of other bullshit. This is Pakistanis claiming they shot down an SU-30mki multiplied by 50x.
Remember the same people that concocted WMD hoaxes, made up babies beings thrown out of incubators, lied that Afghanistan won’t fall, made up a fake dossier on Trump and blamed Putin, waived around a vile of baking soda claiming it was anthrax are now the same people spinning PR positively for Ukrainians and negatively for Russia.