DIRT Mod aero lifting the moisture out theory... LOL. There are way too many examples to discount that theory.
It's gotta be in how the track is prepared, what type of clay it is, and what's mixed into that clay. Seems to me, any NY clay or any track which is either underwatered or really smooth and hard packed is prone to being polished off and going black when big tires race on it. Late Models, Sprints, Modifieds, you name it, they'll polish up any NY track and just about anything that's not made of red clay.
Pretty much every big late model race you see is on a polished smooth track, just like just about any Super DIRT Series race. Sprints seem hit or miss with slicking off a track, most likely due to more bite/less slide than Late Models and Modifieds.
Temperature and humidity play a big role too. Take Rolling Wheels for example. Mid summer races the track slicks off top-to-bottom and gets that fine dust cloud going. During Super DIRT Week with night time temps in the 30's, the last two years have been hammer down, nearly track record speeds for the sprints.
Not sure, but I think the original post might have been about having rutted junk tracks rather than slick/locked down tracks. Those tracks seem to have too much water, are not packed enough, or the wet layer doesn't go deep enough and gets slung off. A somewhat dry but very smooth/hard surface is sometimes the "play it safe" type of surface... people won't complain a track is too smooth, but they'll be all over you if they're dodging rocks and mud clods while watching cars hit jumps and bicycle through ruts.