Is it possible that Putin provided these weapons to people who aren't as competent as you assume them to be?
Look people, this is the start of World War III. We are already over a year into it thanks to the corrupt cronies running the US into the ground. Expect more bad. And I think they did not care what kind of plane that was. No will they in the future. Who ever shot it down. Just listen to their own words. Must have been spies then.