Why did you have this impression?

Groupthink I guess: other people who I knew didn't think that it's so important (despite being people who are very well educated by conventional standards, top ~1% of elite colleges).

Tell me how exactly you're planning to use PCA day-to-day?

Disclaimer: I know that I'm not giving enough evidence to convince you: I've thought about this for thousands of hours (including working through many quantitative examples) and it's taking me a long time to figure out how to organize what I've learned.

I already have been using dimensionality reduction (qualitatively) in my day to day life, and I've found that it's greatly improved my interpersonal relationships because it's made it much easier to guess where people are coming from (before people's social behavior had seemed like a complicated blur because I saw so many variables without having started to correctly identify the latent ones).

i think the sooner you lose the need for everything to resonate deeply or have a concise insightful summary, the better.

You seem to be making overly strong assumptions with insufficient evidence: how would you know whether this was the case, never having met me? ;-)