User blog comment:Bakublader1/Mal as Guardian?/@comment-5553705-20121216061055/@comment-4928331-20121222115136

Happily there's a fanwank saving asspull.

Remember, Green Arrow's computer had a male voice. League systems had Artemis voice.

Green Arrow lost so much cash he was unable to upgrade his obsolete system. That's why it couldn't distinguish the two.

(It's a fanwank because we both know the computer had a male voice to save on voice acting costs - Stephanie Lemelyn had no other speaking roles in the episode.)