I have had several dealings with Matt my self, both through email & voice. He has not always returned my emails if they were general questions... as he is mostly just a single person business and probably works 12hour days being self employed.
I give him credit for going to China to meet with BA, he did his homework, I don't know what he saw, but he made an attempt anyways.
IF BA was a scam, they would of closed up shop... but since they they have released bit mining equipment in the past, I think they will be ok to deliver this current batch.
I can not see BA creating any new product past these 2 batches, not sure what the point is as the the power limitations per home, and the difficulty rising..