Can you provide some references for your claims? Don't know much about Germany but that sounds totally made up as limitation of liability is the key concept behind the invention of companies.
https://en.wikipedia.org/wiki/Gesellschaft_mit_beschr%C3%A4n...
I would imagine if a director breaks the law, only then he could be personally liable. And in that case I would imagine Germany does have higher standards than US.
"If the company is in crisis special obligations arise for a managing director the breach of which may lead to a personal liability of the managing director."
So this is quite a bit different and more limited than "If the company goes bankrupt, so does he." and closer to "I would imagine if a director breaks the law, only then he could be personally liable.", for example Adam Neumann might have had problems if WeWork was a German GmbH.
