Yep, it definitely rotates at the bottom using the MagSafe adapter it came with. I’m hoping a stronger connection would resolve the rotating issue. This isn’t an inexpensive solution, but I think I will try it: MagSafe Pocket Accessories - #6 by dps
I have a Peak Design iOS case and confirmed it has a VERY firm connection. So with proper equipment, it should stick well (even if Pocket’s magnet is less than ideal, a stronger one on the phone could solve this).