I think they are referring to microlights, rather than unpowered hang-gliders.
Probably correct. The author is more than likely referring to powered "trikes", as opposed to a foot launched hang glider. This happens a lot in the press. Same thing with paragliders and powered paragliders, even though they aren't remotely associated with hang gliders in design. Although trikes were developed from hang gliders and share a common history, they are quite different and, in most cases, are not interchangeable. IOW, no one foot launches a trike wing (way too heavy) and a typical hang glider is not designed or built with the intention of being capable of powered flight. A trike would still be a sitting duck, though......