Not the best name for the article. My first guess was version changes, or software being added/removed from repo. Turns out this is about source code modification.
Personally, I believe s/change/modify would make more sense, but that's just my opinion.
That aside, I'm a big fan of Debian, it has always "felt" quieter as a distro to me compared to others, which is something I care greatly about; and it's great to see that removing of calling home is a core principle.
All the more reason to have a more catchy/understandable title, because I believe the information in those short and sweet bullet points are quite impactful.
> it is best to run opensnitch to mitigate some of those problems
Opensnitch is a nice recommendation for someone concerned about protecting their workstation(s); for me, I'm more concerned about the tens of VMs and containers running hundreds of pieces of software that are always-on in my Homelab, a privacy conscious OS is a good foundation, and there are many more layers that I won't go into unsolicited.