State's rights.
Because the cows don't die, I think there's an underlying belief that if they let it run its course enough antibodies will be in herds that it'll "go away." To be fair, if the influenza A spikes that have been seen in wastewater were from animal sources, as some have said, they seem to have peaked around May 8th. I'm certainly not predicting it's all on the down swing from there, but, I suspect that's the hope in some circles.