I would be wary of what of 'an inside source at Simply Mac' said regarding what Apple was doing given all the shady stuff Simply Mac supposedly was doing. Looking up reviews I found these at trustpilot (74% bad rating):
'I placed an order for an item that was supposedly in stock. After I reached out for a status update, they said we are "unable to ship inventory at this time due to a huge processing error at the warehouse. Nor do we have guaranteed shipment dates for your order."'
Now step back and look at what that is saying — Simply Mac was claiming the product was already in stock and only after the customer did a follow up did they get some song and dance about some "huge processing error at the warehouse". More over they asked "why cant I cancel the order online? What year is it that you're making people email you to cancel an order?"
Another reviewer stated that when they contacted Simply Mac they were told the computer they ordered was "on stock" "but don't have any idea when the order will be shipped". ie in both cases Apple had supposedly already shipped the product to Simply Mac.
Yet another reviewer stated "When you ask Simply Mac to cancel the order, they tell you that a restocking fee will be incur" ...even if Simply Mac didn't have the item to restock.
Over on Appleinsider, dybarra1317 said this: "Their lack of inventory is because their department that handled orders and preorders didn't submit for any inventory for over six months and upper management missed it. The store here had over 25k stolen from a third party fed ex delivery service, and her manager at the time ignored it and fudged inventory stock to make him look good so he could get district manager"
Heck, "Citing funding issues, Voigt said that Simply Mac is unable to adequately stock its shelves with products" does not translate into 'Apple refused to send us product'.
IMHO this is simply somebody at Simply Mac trying to put the blame on Apple.