Just look at the leaked videos about going to the cong you are assigned whether it makes sense or not. They were splitting up families. They are purposely tearing apart their communities. I've seen it with combining congs. They don't' just combine, they move people all over the place that have come to know each other. It's a mess, and people are more zombie ish than ever because they are supposed to be happy, but they are more miserable than ever.
It's like crackdown on big parties in the 80s, but now they are switching up congregations. Like if people don't get too familiar with each other, apostasy won't break out!