If EVERYONE listened with the assumption that they were wrong and then made their response passionately with logic and belief that they were right, we would get to significantly better outcomes.

You missed the point.  When people comment that the author was whinny or she complaining, they were not seeking the truth.  They were simply reinforcing their pre-determined views.

I believe the fact you did not understand her plight is your inability to put yourself in someone's shoes.  That is a listening skill.  People feel the way they feel.