Thanks for bringing it to my attention. By the way, if anyone finds something that clearly needs errata (like directly conflicting rules) and nobody from the errata team has posted in the thread, feel free to PM me or one of the others on the team. Anybody with "Troubleshooter" under their name is on the errata team.
Without discussing it, my input would be that running should be a defense bonus, keeping in track with my logic earlier. It's a condition applied to the defender, so it should modify the defender's pool. Though that brings up the question of whether sprinting should offer +4 defense (since apparently it would have given -4 to the attack). It likely does; the only way it wouldn't is if the team thinks that being able to get more than a hit on average to your defense just by running (which anyone can do) is too good. But, I doubt that.
As of now though, that means that with a +2 to defense and a -4 on their attack, sprinting into gunfire is a really great way to not get shot! The average corpsec must really struggle to hit a moving target.