Mary Chronicles update: I emailed BD via Amazon to ask about their Legacy stock, and was told that their last shipment contained Legacies, but then they updated the model. They said "Once depleted, which has yet to have occurred, Amazon would then be restocked with the new model and the corresponding photos."
They also said that "Due to a recent complaint about an incorrect version being sent, we have decided to pull all stock of this model (Mary), in order to assure that our customers are receiving the model specified in the pictures, sizing and description displayed on Amazon. We are anticipating this shipment within the next couple of weeks."
I don't know how I got the new model if their last shipment was pre-update, and they still had Legacy stock left??? Maybe they sent out a shipment containing both?
Although... I can't tell if "We are anticipating this shipment" means "We're getting the stock sent back to BD", or if it means "Amazon is keeping the stock, but the storefront will sell the new model".
I hope I didn't shoot myself in the foot.
I replied to thank them for their response (actually seems helpful, hooray!) and ask them if the pulled stock is being returned, or if it would still be possible to acquire a Legacy via Amazon.
Still gonna email Amazon when my friend gets back from their trip (since the order was placed on their account) to ask if they've got any left, since it sounds like there might be some kicking around the warehouses somewhere.