The JW religion brought many people together who would not ordinarily associate together , coming from all walks of life , socio-economic differences etc.that promoted socialising at the KH ,and at conventions and assemblys.
Not to mention some weirdos who were attracted to the religion
Some congregations I was in took the sociaising further where we got together for other activities.
Maybe people are apprehensive / wary about meeting up with "strangers " again and feel they may be getting involved again in something their not comfortable with.
Years ago I was in contact with a poster on this board who lives in the same state and we talked about meeting up for coffey,but it never eventuated .