I answered this about a month ago for I think COVA.
YMMV but every time I book a reward ticket using my miles for like a family member, their boarding passes are Elite and they are given two bags at 70 lbs. Even if they are non elite or whatever. They don't even have to be related to me it is just automatically marked as Plat on their tickets.
Every time, and I mean 100% of the time.