SM, I’m glad you caught on. At the end of the day G-d runs the world and believe it or not – the world of shidduchim too. If He decided to keep people single for an amount of time there is quite obviously a reason for it.
Anyway, why are people so obsessed with procuring logical reaons for this “crisis”? Not everyone that is single is a self-sabotager… maybe maybe its just part of Hashem’s plan for them to wait a little longer.