^Sure, excessive lowering will mess up the roll geometry. But a drop such as 0.5" is well within the stock suspension's normal operation conditions and will not have an adverse effect on the suspension performance.
The picture you are showing is probably a dedicated track/race car, judging from its front strut with remote reservoir (at least 2-way adjustable)... probably lowered 1.5-2" from stock? Any shots from the outside?
2011 E92 M3 DCT
1991 Spec Miata
2008 E92 M3 DCT - KW Competition 2-way / Brembo 365 BBK / OMP ARS racing seats / rear seats delete / GT4 aero / AiM EVO4 data logger / SmartyCam racing camera
2008 E92 M3 6MT
2008 E92 335xi