Two examples:
1) As avid reader of American news, I'm always amazed by their one-sidedness when they report about "success"-stories of the German renewable energies program ("Now This" has multiple videos that if translated to German would come across as a teenager's propaganda attempt). But since their audience is American, usually not fluent in German, it's a cakewalk to "construct the truth" by not write a single sentence about domestic German criticisms of those programs.
2) The right-wing example in Germany would be reporting about violent and raping refugees, without stating that most of the victims are refugees themself and that it is often refugees who help with the investigations etc.
“Now This” has nothing that doesn't come across as a teenager's propaganda attempt (or, perhaps more to the point, rehashing press releases from interested parties) in English, so I'm not to surprised you think it would come off that way translated to German.
Then again, if you asked Americans to name a respected news source, “Now This” wouldn't be a frequent response.
„Now this“ is of course an exaggeration of journalistic constructionism, there are more professional approaches.
In what sense do you use constructivism here? I assume it's not mathematical constructivism.