I didn’t realize even though a topic was made for an item, it is possible an item is not coming to the shop...
These threads were made straight after the trip to see the F/W collection. That's going to be before Giles and Alex put in their final orders. I guess things can change in between those two events and if a product generates no excitement with either retailers or the forum in that time frame, it will probably be dropped. It's understandable from that perspective.
A similar thing happened to me with a vest a few years ago. I was lucky enough that Giles was able to source one for me from Japan though.