Google: strange PDF I uncovered

Through a series of lucky happenstance, I chanced upon this page called “Cloudera” and it is somewhat disturbing. Navigating the page led me to a password protected PDF file that is easily made readable by posting the link in google translate. Why is it password protected? It appears to explain some sort of vital change in the way that Google manages their data systems. For any readers with knowledge of the technical jargon, I would appreciate some feedback as to what is being described in this PDF.

Here it is if you’d like to read it