This is not a general problem with moderation there, centralized or decentralized. This particular issue is specific to a large group of people that don't like Jesse Singal and have been trying to get him removed from Bluesky. It hasn't worked and that group is trying all kinds of way to reframe the narrative to get leverage. All the padding this post adds around that is neotechnical jargon slop.
The more interesting part of the article, completely unrelated to Jesse Singal, is that Bluesky bans also apply to Blacksky because Blacksky can't afford to run their own moderation.
According to the post, it's a usability issue of the open source app layer and not some failure of moderation principles. "Blacksky is dependent on Bluesky’s application server to give users a fast experience, which also means that it is dependent on Bluesky’s labeling system and its moderation choices." Also, Singal's name is mentioned multiple times throughout the the article in irrelevant contexts. I still see the agenda here and I've seen this tactic before.