SadPole observed:
"Well, actually, it is supposed to be far harder to make such a mistake from a warship with far more radar and radio equipment, satellite support, etc. By contrast, the mobile SAM operator has none of it, is mostly on his own, especially in a proxy war, does not have other defenses that the warship has. If he hesitates when he should be shooting, he will be bombed to dust. "
I didn't make the point adequately. If the USS Vincennes and its supposedly highly trained crew managed to make this mistake (a couple of big assumptions there) it's considerably less surprising that a similar mistake could be made by intoxicated knuckle-draggers using Soviet era hardware.
BTW roughly equivalent number of victims killed in current Gaza "operation", including children. But that's "business as usual" so less newsworthy.