This problem has been known for decades. As of April 2019, 56.1% of the world's population has internet access. Do you think it is acceptable for a major transit ISP to have no basic filters in 2019 let alone implement RPKI?

Can you explain what part of the Cloudflare statement you consider to be posturing? A cursory review of the BGP announcements referenced in the article are pretty clear. Facts are facts regardless of how the message is delivered.