>>106344555
The source is in the original blog post if you read it correctly. They write correctly that it is about one company their specific business plan. You also find about the company on their Wikipedia page.
But the headline is fakenews clickbait, as it and their wording in the article is suggesting that it is about all adblockers in general, because they explicitly use the plural form respectively general wording, resulting in other idiots copying the narrative.
The case is not about whether adblocking generally should be considered a copyright violation and would be banned.