Conservative leaders are very likely to only cynically perform their supposed values. For money.
People that authentically hold conservative values work differently. I suspect that the lower divorce rate among this cohort has a lot to do with another statistic: that 65-70% of divorces are initiated by women. Conservative values would seem to inhibit a woman from initiating divorce, resulting in a lower rate.
also: this article is poorly thought out junk top to bottom, imo.