No problem Megan - in that scenario you would hopefully have the camera facing forward and being monitored - I would have to re-read the report but ISTR that is where the rearcrew warning about the rock came from, they were monitoring the IR picture in the cabin.
The IR picture in rain suffers because of thermal washout - it relies on the thermal contrast of emissions between different surfaces - the rock and the sea for example - to detect shapes and this is affected by rain and cloud.
NVG is different, it need light to amplify and produce an image on the screen in the goggles, so as long is there is some light, you will get a picture even if it is very speckly and low contrast.
This crew had radar, which it would seem they didn't have optimised for the scenario, IR which I think did detect the rock very late but didn't have NVG which in the described conditions would have forced them to lookout because they were wearing them and detected the rock and light house.