It's why I get miffed at all the dashing around in recent zombie films. It completely misses the point; transforms the threat to a straightforward physical danger from the zombies themselves, rather than our own inability to avoid them and these films are about us, not them. There's far more meat on the bones of the latter, far more juicy interpretation to get our teeth into. The first zombie is by comparison thin and one dimensional and ironically, it is down to all the exercise.
Remember when only a few people had mobile phones. Generally regarded as an object of derision, you would occasionally see business types clutching those ridiculous grey bricks to their faces and mutter to yourself 'what a prick.' Nowadays, an eyebrow hardly even flutters when we see a ten-year-old child happily texting away. You probably wouldn't notice anyway; you'd be too busy downloading an app that could definitively pinpoint who it was that had just farted in your tube carriage.