I've never been a big fan of the Southwest Airlines casual style, but I like their prices. I think flying in a huge heavy metal plane at 500 mph, 30,000 feet in the sky, is a pretty serious situation (with or without Capt. Sully at the controls)and I don't really want flight attendants to act like we're at Applebee's.
However, this flight attendant's gimmick is an exception. Pretty cool.