It may not make sense, but it reflects the situation on the ground.
Francophones have become so assimilated and the francophone community outside Quebec has so many exogamous couples that when you look at rights holders who want to send their children to French-language schools, you see that French is the first language learned and understood for only one parent.
The situation is at an all-time low. As hard as it may be to imagine, that's the reality.