I agree with this. I find about 50% (very rough estimate) of the time when I say "I think this is what is going on in my head" and my OH disagrees, he's right and I'm wrong. I usually to have a strong tendency to rationalise, and I don't think I'd be close to how successful I am with Alicorn-style luminosity without that sort of outside input (though admittedly I'm still pretty bad - that stuff is hard!). I reciprocate when he introspects as well.

I do still find it annoying and instinctively argue back, but results spoke for themselves when I turned out to be wrong, and now I welcome it as an overall positive-utility interaction even though it still annoys me on an instinctive level.