The communication suggests this is coming from Google AdSense which is the publisher advertising side of things, informing the site admin that their site contains content that will likely result in them being removed from being eligible to sell ad slots to advertisers on their network.
Whether or not the assessment of individual flags are correct is another discussion (of which I genuinely don’t care and don’t have time to look into), but it is perfectly normal and acceptable for ad exchanges, Google AdSense in this case, to inform publishers that they’re about to lose out on profit potential because their content is not in compliance with what the advertisers are expecting from the exchange.
Google AdSense could just as easily immediately kick the publisher from the program, at which point they’d no longer be eligible to sell ads through AdSense, but their content will continue to remain online. No censorship is taking place here.