Loss of HQs pondered in Arizona

Smug. What's up with that statement? It comes at the end of the article from Jon Talton.

Valley again risks loss of HQs - 4 this time The truth is that Phoenix is the last big factory town in America. The product is building houses, along with all the services that are needed by a rapidly growing population. It's a move that has 'worked' for the past half-century, and right now we're as smug as Pittsburgh steelworkers in, say, 1979.