Though there is some insider information, Bitmain selling only 1k units is just false.
it's most likely fake, but the S15 has been more "out of stock" than in stock, also based on the coupons distrubitons which i talked about in this thread >https://bitcointalksearch.org/topic/how-many-s11s15t15-did-bitmain-actually-manage-to-sell-5114713 , despite the fact that statistics i had at my disposal were fairly small, i am almost certain that bitmain did not sell anything above 10,000 S15s at best case scenario.
but i am starting to doubt the theory about them going broke what so ever, the 1,1 billion profit they hit last year will keep them going until the next bull cycle whereby they will boost their production and profit again, i strongly believe that bitmain will dominate the mining market for decades to come.