Emotional intelligence about yourself and others is important, sure. But you're confusing acquisition of facts and education. Many people are effectively illiterate for all but the most simple communication. Likewise so many people are innumerate and without basic reason or understanding of basic rhetoric both making and evaluating arguments and information.
Teaching math, history, and language isn't about remembering facts or specific skills, they're proxies for teaching you to think and reason and operate in the world.
> comfortable with ambiguity and uncertainty
> regulate their emotions
> Emotional intelligence
I'm not sure we read the same parent comment. There is almost nothing in there about emotional intelligence beyond learning self-regulation, but emotional intelligence is at least as much about understanding others' emotions, understanding social cues and etiquette. But the bulk of the parent comment is about adaptability, general self-awareness and self-examination.
You then make an argument that education does, in fact, teach those critical skills indirectly through basic subjects. Having given such a bold premise, you would need to back it up with at least some supporting evidence. Given that you provided none at all, you shouldn't be surprised that no one sees reason to agree with that premise.