I think the case linked above was quite complicated.
I think the woman filed saying the marriage was irrevocably broken down due to her own affair.
He had very good answer to all her points. And, as the cheated on party was willing to stay together. I have no doubt he was being an asshole and manipulating the system, which us why its needs to change.
But that case was just awful. You can be miserable in a marriage and without telling other person doing something awful. And that something awful, has to look awful from the outside.
It reality, if one person wants out, the marriage is over regardless of reasons and no one should be in a marriage they want out of. So even denying that divorce, on technical grounds, didn't mean they would have to work on the marriage.
I just can't see the point in making divorce so difficult.