Let's not forget, these are the same consultants that did work for Enron, work leading up to the 2008 financial crisis.[0] McKinsey is also advising various government agencies on optimizing their Covid-19 response[1], generating revenue of $100m and counting.
This statement is ambiguous anyway. This is a civil suit and not criminal case. Secondly, from my understanding, only the SEC via a federal court can "ban" someone from being a director in a public company.
[0] https://en.wikipedia.org/wiki/McKinsey_%26_Company#Controver...
[1] https://www.propublica.org/article/how-mckinsey-is-making-10...