At the risk of playing Devil's Advocate, it could be the straw that breaks the camel's back, no?
O.
Yep. The straw's been fraying for about two decades now.
Numbers in the Kirk have dropped - partly because many have left to join other denominations and independent congregations.
The Free Church - now a bit (though not much....( more flexible, has increased its' number of congregations - and the one in Aye has split...not because of the usual schism, but because the building only seats four hundred, and they need new premisis, so a new congregations formed.
My local independent Fellowship, once a rather austere Bretheren assembly, kicked itself in the backside a few years ago, became far more friendly, and now has a serious problem with limited accomodation as the congregation has doubled.