More or less, I am being incredulous that they "didn't make enough oops", it's ink printed on a commodity, there is essentially an endless supply available, so it's a choice to sell out.
Have you ever ordered commercial merchandise? You tend to order a number far below infinite, and if your goods sell faster than you’re able to get a new order, it is “sold out.”
And yeah, presumably they didn’t do a giant run for this, nor should they have?