They did address it. Texas mandates that any corn sold as wildlife feed must be tested and certified aflatoxin free. Baiting with non-cert corn in Texas is illegal. And they're strict about it. You can't buy non-cert corn there because it isn't sold.
Since TX keeps coming up, a better question would be if baiting and aflatoxins aren't that big a deal then why would TX go to such lengths to protect their wildlife resources from it? My guess is because all that money & research commanded it. Unlike TN, TX is loaded to the hilt with professional game ranches. Their wildlife is their living, a major industry in west & south TX that employs a significant portion of the population whether directly or in support of. I lived in Del Rio for a year and spent plenty time in Uvalde. Hunting ranches absolutely rule the economy. Baiting is an enormous part of selling hunts, yet aflatoxic mold in corn damages the wildlife they are selling. It was a conundrum they had to find a solution to. The economy literally depended on it. So they outlawed toxic corn and are very serious about enforcing it.
Furthermore, TX is by far & large a pretty arid state with significantly less rainfall than TN. On corn that is already tested to be free of aflatoxin mold, it's significantly less likely to acquire the mold even when poured on the ground. It gets poured out dry and it stays dry, dry enough to not mold. That isn't the case here in TN. Pour corn out tonight and it might have mold on it by morning. It's really hard to draw comparison between the two states in any way that relates to baiting.