Yeah can confirm that they're doing this. Received mine yesterday as my order during December took over a month to arrive! (It was just a murloc mug, not a very expensive item and something I could wait for anyway)
Got told in an email that they were sending me a gift to apologize for the delay and that it would be with me in a few weeks. I was expecting something shitty like a keyring or something, so imagine my surprise when Chen Stormstout shows up with the Fedex man! <3
Tweet I made upon getting it below: