It's about preventing wrongthink from being expressed on newspaper comment sections. Previously they just removed commenting from politically contentious stories, so I'm not sure why they're bothering with bringing it back.
Without comments, people go elsewhere to discuss the issue - elsewhere that you don't control. With comments, they discus it on your site, where you can completely control who can say what and how visible those comments are.
Done correctly it's a form of soft censorship by controlling of the discussion and manufacturing consensus among the "commentators".
Hard censorship has more immediate backlash than this does.
It's part of a larger narrative being sold to the 21st century investor, that AI are taking everyone's jobs, so buy your robots before someone enslaves you with theirs. (It's all still leading to the Butlerian Jihad of Dune.)