As someone who straddles the line of yeshivish and chaddidish, I doubt the “beshow” process will work for yeshivish / litvish singles for one reason only: they are better educated than their parents, so they think they’re smarter than them too.
In the chassidishe velt, the singles are raised on the belief that the “friedike dor” is the be-all, end-all, so if momma / poppa says xyz, its xyz.. even if the modern world says otherwise.
My kids (and most likley, my future D-I-Ls) know more than me / Mrs, when it comes to raw data, and tech info. But are they smarterr? Hmm….