OK, that would explains why a lot of it seems to make little sense.
I can see the point of it for a laptop that a government employee might leave on a train, where the data should remain secret and have many backups. But the average home user just wants all those photos, videos and game saves to survive going from one PC to another, and we all know most of them never keep backups.
Can't wait for the next relative to bring me their dead laptop and find that they've enabled Bitlocker and all the rest when prompted, and now that "secure" data is now gone.