It's not impossible, but incredibly implausible. First off there isn't any evidence of an interception in any of the videos. Second, intercepting a hypersonic object with ordinary SAM sites is pretty much not going to happen. The amount of time it would take just to get a radar lock let alone to launch missiles would not leave much time for interception.
Interestingly, Russia does have an active ABM system. The old ABM-treaty allowed both the US and the USSR to have one ABM site active for each country, the US shut theirs down fairly quickly but the Soviets maintained and later upgraded theirs, protecting Moscow, and Russia has kept it. It's a nuclear warhead based system, it would be interesting to see what the hell would have happened if the same event happened over Moscow instead of Chelyabinsk.
Interestingly, Russia does have an active ABM system. The old ABM-treaty allowed both the US and the USSR to have one ABM site active for each country, the US shut theirs down fairly quickly but the Soviets maintained and later upgraded theirs, protecting Moscow, and Russia has kept it. It's a nuclear warhead based system, it would be interesting to see what the hell would have happened if the same event happened over Moscow instead of Chelyabinsk.