Yes they do, but if sales weren't making it that far then it makes sense to stop distributing to Animate stores since that would normally mean a rather large quantity which would be too much hassle if it wasn't selling..... So it could be Movic exclusive online store... :c
And sadly the Hetalia merch hasn't hit any of the top charts lately;;; most of the character CDs before got on the top 10 or close to it, but Russia and China weren't even on it;; and yeah there was just a decrease in sales I've been seeing fjdkglfdgfd

But yeah, hopefully the sell out prompts them to do something about it and increase production again or something :(