DY
The probelem as expressed by the good Dr. you quoted is “many single women struggle with short lists and relatively infrequent dating.”
If 100 boys are DATING 112 girls all girls should get equal number of dates (though not marriages) The entire “age gap” theory falls apart once you realize this this it is based on a 1:1 match which isnt the case with dating, since the average guy dates more than one girl
what is happening is of those 112 girls “many single women struggle with short lists and relatively infrequent dating.” There are more than enough dates for them! yet they arent getting dates for whatever reason.
Closing the “age gap” will not change the reasons they arent getting dates. If 100 boys are going out with 100 girls the same group that has had trouble getting dates in the 100:112 scenario in spite of the fact that there were plenty of DATES available will still have trouble getting dates if other societal norms remain in place.
Keep in mind these societal norms are more recent than the “age gap” thus better explain why the “shidduch crises” is a recent phenomena.