It works perfectly as an argument. If you can't convince the companies who are in the business of auditing to audit you, it's entirely reasonable to think "may

It works perfectly as an argument. If you can't convince the companies who are in the business of auditing to audit you, it's entirely reasonable to think "maybe that points to systemic issues in this business model". And we're talking about firms that are routinely willing to audit and look the other way and sign off on all sorts of obviously shady practices.