I think it’s a “if I can rationalize it, I can make it make sense, if I can make it make sense, then I can cope with it” mechanism
Seems ultimately self defeating in these sorts of circumstances though
Unrelated, I was thinking about the derails last night - it’s almost like a real life trauma response, isn’t it? If we were all sitting around the dinner table or something, little tangents of levity would start breaking off as everyone starts to process what happened.