I just don't get it, even if Amarex submitted a la

I just don't get it, even if Amarex submitted a lacking BLA, was told by the FDA what they needed to add/fix and then failed multiple times to correct those issues, how do they keep or get other customers? the only reason anyone hires them is to get a drug to BLA/approval. They failed to do that and no matter what the excuse is, i can't imagine anyone hiring them. If there was a deeper conspiracy to purposely screw this up, that would need to be really profitable option because it has likely cost them the entire company.