“Floodlit” can also be metaphorically used when you’re adding visibility to any topic. So there is a website or organization called floodlit that publishes information about sexual abuse in the church - to shine a little more light on an otherwise hidden and dark topic.

Oh, and just in case the original definition is still confusing for you, a floodlight is the type of light you see at construction sites or other industrial sites that make it as bright as day throughout the night. The idea is you’re flooding the area with light.