maybe... and it is a big maybe... some players like the idea of characters with family and sparing the NPC wife of the loss of a children... a complicated pregnancy... the possibility of death during labor... etc...
I realize is not the most common cup of tea for players but I am guessing (again) this was thought on putting some level of realism and community to the spells.
Bottom line... don't like it... don't use it or make it so easy/cheap to use that become irrelevant... YGWV