Yeah, I'm just not sure why this is interesting.
It says "a high level general description" a bunch of times. It's not enough information to do anything with.
The summary mentions security a bunch of times, but it says nothing about any specific security measures or requirements. So I clicked through to the article. The article is similar to the summary: no specifics. It links to a long "requirements" document.
What does the document "require" regarding security? Answer: a written plan. 5G networks should write down their plan and send it to the FCC. It should have some specific list of headings and sub-parts.
So the result of this is
"Personal flying vehicles" seem like a good idea to people who have never experienced weather and don't know how flight systems work.