This makes me think of something else I read that I also found disturbing - that a husband can be forced to divorce his wife against his will under certain conditions, one of them being if they remaind childless after 10 years of marriage. This really rubbed me the wrong way. It seems, going back to a previous comment, that the whole point of marriage in Judaism is self-propagation of the people, not at all something between two individuals make in the image of God, with free will to enter into a loving commitment at will. That's how it sounds to me as an outsider.
Agreed. The agunah is an issue. And what you have described above is another issue.
It all goes back to the beit din, from what I can tell. If the beit din is healthy, and pious, I think that they will make the right call for the couple, the family, and the community. That's the intention at least.
The agunah problem is unique because, It seems like the beit din doesn't have any good options if the loophole is exploited. But for what you have described above, I feel like on a case by case basis, sometimes it makes sense to encourage a divorce, and sometimes not. "Remaining childless" could be a sign of other incompatibilities, and it's simply being described as an umbrella term "childless"?
But honestly, I'd be starting over with my research on this specific circumstance if i wanted to speak about it intelligently. I hope you understand.