It's been said that people that say this are transparently trying to manipulate other people, which is why the others prefer to cut off all potential for tedious negotiations.

This is the same reason people prefer buying Tesla's direct instead of having to make a deal at a dealership. If they all had high EQ maybe they'd prefer the dealership model after all.

I feel like people who have high EQ should actually grasp the infinite depth and complexity of even the median human.

Just imagine, there’s a woman Alice who cleans your home once a month. On this particular day, she had a fight with her husband this morning on (something completely unrelated to you).

Do you expect her to check her emotions at the door when she enters your space? Or is she going to give really bad vibes while she is moving around your house?