Rolling, combat or otherwise, I see as sometimes necessary but rarely preferable when covering a distance. The wounded officer was either too incapacitated to get up and sprint to safety or his body just reacted to survive. He probably never had the time to ask himself, "now, what manner of retreat should I employ here?"
My favorite Hollywood move is when a perfectly good sprint for cover suddenly turns into a dive-roll halfway. How about a nice spin move or a stutter step??!!