Shane actually dies early in the comics, so it was not a shock that they killed him off. The comics are kind of shocking in who they kill off, and it would be disappointing if they played it too safe with the show.
They have screwed the pooch.
Walking Dead (the series) was interesting because it was “realistic”.
How would normal people react to a zombie plague?
Now they’ve introduced the typical, 90lb female “badass” character to screw it up.