I dont think the reason there are less divorces in the Chassidic communities vs other is NOT because of Beshows vs Dating
I think its the way Divorce is treating in general. In many communities Divorce is not seen as that bad and if the marriage isnt working out, get a divorce and get over it.
However AS I SEE IT (and I could be wrong here) in Chasidic communities divorce is strongly frowned upon and only done in extreme circumstances (Although I think that is changing slightly)