These are not the final Blu-ray copies. A Screener is an advanced copy of a film, usually sent out to Academy voters, film critics, or industry insiders during awards season (think October through February).
The purpose is legitimate: to allow someone to judge the film for a "Best Picture" nomination before the physical DVD is pressed. So why the hostile message? That “Do Not Enter” text is a forensic watermark . do not enter dvdscr
You deserve better. You deserve the 4K visuals, the crisp surround sound, and the ability to read the subtitles without a legal disclaimer flashing over them. These are not the final Blu-ray copies