Why is it so easy for bad actors to uplodad content to elearningimages.adobe.com?

How is it this easy to post sketchy garbage to elearningimages.adobe.com? In my opinion, everyone should block this subdomain until Adobe cleans up this spam. Below is a list of paths on this subdomain that demonstrate the sort of abuse I'm referring to. Not putting the complete URL because it is spam by its very nature and most people should not be downloading these PDFs.

/files/2024/11/moana-2-at-home.pdf
/files/2024/11/moana-2-es-14.pdf
/files/2024/11/moana-2-full-movie.pdf
/files/2024/11/moana-2-on-us.pdf
/files/2024/11/moana-2-us-13.pdf
/files/2024/11/moana-2-us-14.pdf
/files/2024/11/gladiator-2-es-14.pdf
/files/2024/11/gladiator-2-on-us.pdf
/files/2024/11/gladiator-2-us-13.pdf
/files/2024/11/gladiator-2-us-14.pdf
/files/2024/11/wicked-es-14.pdf
/files/2024/11/wicked-on-us.pdf
/files/2024/11/wicked-us-13.pdf
/files/2024/11/wicked-us-14.pdf
/files/2024/11/venom-3-es-14.pdf
/files/2024/11/venom-3-us-14.pdf
/files/2024/11/venom-the-last-dance-us-14.pdf
/files/2024/11/beetlejuice-2-us-14.pdf
/files/2024/11/conclave-us-14.pdf
/files/2024/11/deadpool-3-us-14.pdf
/files/2024/11/here-us-14.pdf
/files/2024/11/heretic-us-14.pdf
/files/2024/11/joker-2-us-14.pdf
/files/2024/11/red-one-us-14.pdf
/files/2024/11/smile-2-us-14.pdf
/files/2024/11/terrifier-3-us-14.pdf
/files/2024/11/the-best-christmas-pageant-ever-us-14.pdf
/files/2024/11/the-wild-robot-us-14.pdf
/files/2024/11/transformers-one-us-14.pdf
/files/2024/11/we-live-in-time-us-14.pdf