It is likely that nobody will sue this CEO, but a nontrivial part of that is precisely that this guy is correctly covering his bum. By being ready for this battle, he will probably never have to fight it. And that's only "probably". I wouldn't guarantee it. I would have some clauses about this written into my contract before I took the job.
Usually small businesses are terrible at accounting and finance, but even they typically have some idea where their bank accounts are and what is in them
He's not trying to save or run the company. He's a liquidator with an unimpeachable reputation. From the instant he took over that distance became an ocean. I think he's just genuinely aghast, Enron was at least "clever" about their fraud, SBF and accomplices were brazen.