Auditors are not for your company. Auditors are for your investors. Auditors are not your friends. If you are investing a large amount of money in a company, and they are using a non-Big 4 firm, then any problems are on you.

I've routinely joked to my wife that her life would be much easier if they fired their auditors and went with BDO or some smaller auditing that they could bully around. The thing is, that's exactly how companies with weak accounting think, and FTX proves that point.