[B7L] Weapon

Saw Weapon yesterday and only just realised bits of it that didn't make sense.

The girl who used to be a slave (Rochelle?) told Servalan not to press the button on the blue box because she'd just marked her and Travis for death. Which makes it sound like anyone marked within range would all die if the button was ever pressed. Which sounds reasonable to me.

Except for the fact that earlier Servalan uses a guard to demonstrate imipak to Blake, Avon and Gan. At that point Travis was also marked but didn't die (and he was standing right next to her). So if it does only kill people you point it at, Rochelle wouldn't have been a threat to Servalan. Or have I just missed something here?

Nic