Since it is the light emitted from the planet itself its detection does not depend on its distance from its host star.  The NIRCam coronagraph will enable detection of planets of masses < 1 \(M_{Jup}\). It will help to study planet systems like our own not just EGPs by detecting the signatures of life or biomarkers  \(O_{2,\ }O_{3,\ }\) etc. using spectroscopic techniques.