Fired for not smiling? What next?!?

This article from a US newspaper freaked me out. Connecticut apparently is a state in which your employer can fire you for whatever reason they want. That's bad enough, but to get fired for not SMILING enough? What the h***? And she wasn't a flight attendant, receptionist or any other "public face" of the organisation. So what does this mean for the Connecticut business future? If you have a boring homogenous workplace, that's the first step on the slippery slope to irrelevance and bankruptcy. How can creativity and innovation thrive when you fire people who don't have a grin pasted on? What happened to diversity in the workplace? What happened to the need to have the "outside the box" thinkers?
I hope she gets a better job at a place where her skills (I assume she has them) are better appreciated. And that the short-sighted closed-minded company that fired her gets a karmic backlash.