Download protection question

Hello,

there are some things that I don't understand regarding the download protection feature.

On my environment there is the Basic Download Protection feature that is enabled but without Download Insight.
From what I saw on internet that this features allows: " Endpoint Protection the ability to track URLs " but I don't understand what is the capacity of Download protection without Download Insight ?

I saw that almost every client has a "Download Protection Content" out of date. What is this content used for ?  

Best Regards,

Joris KIEFFEr