Stuff like outbrain.com, scribol.com, travelwhip.com, and their ilk. Obviously these are not strictly "news" but you get the idea. I think of them as sites that will do almost anything to increase clicks, ad impressions, and affiliate revenues, including presenting severely compromised content.
Of course that gets into difficult judgement calls, whereas this pop-under case is pretty clear cut.
It makes sense if they want to move slowly and deliberately, but I hope they won't stop here.