Because it is the choosen format for the release notes.
I look at the announcement’s first 2 posts by philm, and then glance at what type of problems or questions folks might have and the poll. The second post contains “Known issues and solutions”. This isn’t meant to create anxiety, but rather gain knowledge. There is transparency. We can all be in the know and prevent potential problems on our systems. There aren’t a lot, sometimes none, and they may be very specific. Those few minutes, may save hours.
It is a very quick glance, but I
- may have the same hardware, or
- many people are experiencing the same issue, or
- a particular package/program (system or application) may have been removed from the Manjaro’s repo, or
- some action outside the normal package manager might be required, that sort of thing.
By us users reading the announcment, we are saving the Manjaro Team time 
,
This is no different than reading the archlinux front page news or linux mint’s install instructions or release notes. But it is a rolling release and is going to happen more often.