The narrow-mindedness I am referring to is that of assuming that the entire problem can be solved without considering more than one variable.
I have discussed this before, at length. You know this.
I have nothing negative to say about the Chassidishe shidduch model. But I would be against an all-out kol korei insisting that everyone adopt the Chassidishe model in order to solve a shidduch crisis. If our leaders say that this derech is better than our current one, then fine – but to say that their derech will solve the problems, no.