Absolutely. If a body is asked to investigate a complaint and it can't access the information, then it will come to a conclusion that is not based on the full set of facts. This can be, I think, detrimental also for companies, because it may come to a conclusion that the company has violated its responsibility to respect human rights or otherwise acted in a way that is harmful when in fact it might not have done so. Therefore, it can be harmful also to the company.
On April 13th, 2021. See this statement in context.