"Yesterday my uncle died and my dog got hit by a car"
A lot of people communicate this way.
I get the sense that you're on some vendetta against all of my comments for some reason, but I'm not on a weird strike against anything except poor assumptions.
I have taken employment (probably IQ in disguise) tests that specifically look for people making this association (and mark them down for it). I imagine they thought it had some association with logical skills and success in computer programming.
The conjunction fallacy has to do with evaluation of likelihood. It's completely unrelated to the conversation so far, which has to do with interpreting whether a conjunction is meaningful in itself.