Sure, eAsic doesn't want to disclose much about it's 28nm technology. Probably because it's not very mature. For all we know, it might not work that well yet.
But whatever. The NDA shouldn't prevent anyone from talking about PCBs, pin-outs for the chip, packaging, facilities, and all the other thing that are going to be needed to get these systems up and hashing.
Well no, it shouldn't, and I'm certainly not arguing FOR the NDA blackout on other information. LOL
But (and I hate to even mention this explicitly, as it would be a worst case scenario), if Ken has no concrete production information from eAsic, he might be hesitant to move forward on any of the ancillary work.