If I had to guess, teams fall into one of two camps. Either they don't care about orientation, or they've found it to be very important, presumably because they're shooting a long distance or doing something unique in the way they shoot. The teams in the latter group have put in a lot of clever design work into their flipping/feeding mechanisms - since this is just hard as shooting the disks - and aren't ready to share them publicly.
I guess we'll see in a week or two.
