@ahoymate NO, that thought never entered my mind.
Why anyone would think a national chain restaurant would offer and sell questionable meat is beyond me.
These types of offers are done to get people into their restaurants. While you're there, you might order an expensive milkshake, bring a friend who doesn't have a pass,etc.
They are looking for upsales. They are trying to drum up business for future sales.
They're also promoting a new summer menu.
Sam's Club and Costco sells $5 chickens for a loss. I doubt the meat is questionable.