By criticizing "no fault" divorce, the bishop is 100% SPOT ON: this is a criticism of a state granting a divorce for no other reason other than one person wants out of the marriage.
No-Fault Divorce = disposable marriage
The state, up until the 1950s, had always considered marriage to be an incredibly important institution that provided stability to society.
Today marriage is on par with the relationship between a pet and its owner.
There are reasonable secular arguments to allowing a marriage to be dissolved without declaration of fault by either party, if both parties seek dissolution on such terms.
On the other hand, I think the law should be written so that a party who seeks to leave a marriage without some reasonable showing of fault by the other party should be considered to be 100% at fault, and be treated as such.
Since a spouse is not a slave, it may not be possible to force someone not to leave because they get "bored", but there's no reason why a spouse who does so should be entitled to a house, car, alimony, children, child support, etc.
You get in more trouble abandoning your dog than your wife.