OK, spot the difference. As you see, at first glance, they do look very similar.
Considering there are 3 years difference between these two cars, ie: facelift styling changes, plus the FR being distinguished as the more exclusive hot hatch version, the ACTUAL styling differences dont go far enough, hence the suggestion that the pre-FL stands out more / looks more aggresive.
Left being the facelift FR, Right, a pre-FL 2007 Stylance!
(plus in this picture, the FR is photographed at a lower, more 'aggresive' angle, which even works in its favour - bring the camera up a bit more, and they'd look even more similar). Even the foglight shape of the facelift FR has gone back to being squarer/more horizontal lines, like the pre-FL Stylance.