What’s good about The Last Enemy as a drama point of view is the direction, which manages to make any amount of staring at computer screens interesting, and the acting, particularly from Benedict Cumberbatch as Ezard — he’s convincing as a man distinctly uncomfortable with much social interaction, yet nuanced enough to avoid cliché.
I agree that the direction and acting were splendid.
As for its status as SF: intelligent, realistic, and cautionary. I hope that like Edge of Darkness this slips through into something larger and more mystical. However, I won't object if it remains hard headed and sceptical.