Companies make decisions that ultimately affect their users in a negative manner including when the company's decision is a mistake. Not having a real method of correcting the mistake is a huge sign to me that says company is not someone that I want to do business with at all. I understand mistakes happen, but claiming absolute immunity and acting like no mistake was made is the absolute worst customer service position to take.
Meta has 6 billion or so customers. Not every decision can be positive for every customer every time.
There are processes to correct problems there. It requires someone to champion it, and to make a good enough case that others will join and for stakeholders to be convinced.
People taking bribes to get people unbanned? People getting banned?