Nonsense. Tubes went on sale on August 12 and chips were available months earlier. If AM would have just built miners instead of selling chips, Tubes would have been available a lot earlier.
Really? That is your excuse? If that's the case AM has a very bad team if they can sell chips and make some miners in the same time.
By the looks of it they haven't sold that many chips so that shouldn't be a good reason to delay miners so much.