I wouldn't want to fly anywhere near trigger-happy russkies behind a long range SAM. Even if they don't have intention to shoot down civilian aircraft those systems are still not well tested and known to lock on wrong targets. See what happened with that Siberia flight when Ukrainians fired an older S200 rocket...
As far as i know, it was not the case. Two rockets was launched, the first destroyed the target (drone), so, when second arrived (s200) it was nothing to do in the sky. They designed to operate in two modes "self destruct if no one there" or "Go find someone else". Because of negligence the rocket was set to operate in second mode.