The wording of that law may be very, very old, and a hold-over from a time when there was thought to be a medical, physical condition called “frigidity” that was roughly an analog to male impotence. Although the word is still in use, the meaning has shifted in that it's no longer a respectable opinion to think that there are women who are literally, physically frigid.
sitetest
That's very possible. It would make sense that laws regarding annulment of marriage - in situations of consanguineity or deception, for example - would predate by hundreds of years the statutes regulating no-fault divorce.
“The wording of that law may be very, very old, and a hold-over from a time when there was thought to be a medical, physical condition called “frigidity” that was roughly an analog to male impotence. Although the word is still in use, the meaning has shifted in that it’s no longer a respectable opinion to think that there are women who are literally, physically frigid.”
There is a condition called, IIRC, vaginismus, that may make penetration impossible.