Boruch Hashem 1 is out of touch with reality. I know plenty choshuv Rabbonim and other people, whose wives are older than their husbands, but are very harmoniously married, and for a long time already.
If this is not enough to convince you about how correct Nasi is, take a look at Chassidic circles, where there is no Shidduch crisis, and they marry people in their age group.
I have never met a man who married a woman older & is miserable, but I have met numerous men who turned down a woman older than they are, and now years later are still single & miserable and bitterly regretting their having turned down this slightly older lady, years ago.