Well, you may still be crazy, but yeah, it happens a lot. There are several issues where what you see on your screen is not the actual situation as stored on the server. Basically, you’re getting the information about what’s actually going on too late. One of the common ones is a player facing away from you on your screen, but they’re actually looking at you, or at least in the process of turning towards you.
Sometimes, they just switch to facing you instantly. Sometimes, their character never turns, but the red outline in the kill cam is indeed facing you. And yes, the whole things feels miserable and unfair.