I can't say I agree with that. This is her main income and she knows that she can only show so much so often before she's shown it all. I messaged her about it and she said that her editor didn't get it done in time. I think that also explains why these last couple sets have been been dropping so late. They're probably being pushed out as soon as the editor finishes with them, is my guess
“Hey peeps - just wanted to let you know that the Advent Calendar is still happening!! We had some delays with editing that held things up but I promise you'll still get tons of awesome goodies and I should have something new for you a little later today!! <333”