It's (to me) more plausible that they are just incompetent and lack the manpower/skills to produce more units at a faster pace. Again, just my opinion.
Really, once they had the designs ready, why didn't they have the units built in China instead of making themselves? It's like Apple making iPhones themselves, by the time the iPhone 5 was announced they'd still be working on the backlog of iPhone 4 orders.
That would've made sense, but who knows why they chose to try and do the manufacturing in-house? Anyway, as I have no personal stake in The ASIC Warz now, beyond warning my friends and family to avoid BFL like a disease-infested hooker, I'll take my leave of this thread. :-)