It's not that the collab isn't selling, it's that they ordered far more stock this time round because the last AH collab sold out pretty much instantly. This year, the collab went online 24 hours before it went into stores. I think they're doing this to try and prevent people buying it solely to sell on at an inflated price.
I bought some socks. How exciting. Couldn't decide on which colour shopper to get so left it. Decided I did want the navy, if only for its pouch. Couldn't find one for love nor money, and surprised there's just khaki left. However, having read comments upthread about a recall, I understand why they all seemingly vanished.