It's not about shutting down VW, it's about jailing one person, the CEO. Or, if he proves he wasn't aware or wasn't in control of his company, the lower level of management, recursively. It will lightly hamper VW, but provide a personal responsibility baseline for all management in car companies. It's mass, oragnized crime we're talking about here.
> Or, if he proves he wasn't aware or wasn't in control of his company
That's not how the burden of proof works. That said, would this case actually be prosecuted seriously, they would find information relating to how he was informed.