Complex_Type, it's not the engines that create the wake turbulence (not directly, anyway...)
barit1, I am well aware of what causes wake turbulence. I was addressing the words in the text in the original post, with at least two references to engines in the first few lines including:
trans-Atlantic rift over potential safety hazards created by the actual wake from its engines.
and
powerful turbulence churned up by the A380's huge wings and four mammoth engines.
I suppose it's ambiguous and they could be trying to say that the profile of the large diameter fans causes turbulence rather than the hot gas but either way the GE90 and 777 engines would be as guilty. It goes without saying that the original article is ill-informed about the causes of wake turbulence. But even if the big engines could be claimed as a problem, the argument is lost because more powerful engines are already rolling on US runways.