Interesting topic. I have to be honest and say I don't really understand, but I know one thing from a lot of experience shooting in low light with digital. There is a huge difference between shooting in various 'forms' of low light. There is CLEAN low light and DIRTY low light, where dirty low light is a very soft and almost no existent form of diffused low light that digital sensors, and even film for that matter struggle to record details.
Clean low light is usually from a fairly direct light source, and even thought it's low, it's transmission is much better, highlighting details enough for the sensor to record information much more effectively. I think if people understand the difference, they really won't waste their time even shooting in dirty light, unless they have no choice and must take that picture. For photographers, just being aware of this, can significantly help in PP.