The hood could come unlatched while driving and having your hood flip up (or the driver stopping quickly if they notice it starting to) at 70 mph can cause an accident.
How is this any different from any other car? If you only partially close your hood the most you get is an alarm inside the car telling you should really close your hood completely.
Other car companies don't get away without fixing the broken latches
It's not the latch that's broken, it's the latch sensor. A lot of cars don't even have latch sensors.