This is literally "We have investigated ourselves and found no wrongdoing"
Why should we trust them?
Reputational risk- if they lie about this and get caught, it will have billion dollar implications for their business.
what benefit do they get from making the statement? they could just say nothing. saying it and having it be untrue opens them to legal issues that are not worth the risk for this nothingburger.
What more are you hoping for? There is no legal matter at play, is the court of public opinion going to subpoena their records?