Precisely. Luck, in that he found someone transformed into a useful alien species, as opposed to, for instance, his only remaining employee who's even smaller than he is right now.

Herbert has himself plastered as close to Tanyuu as he can manage while she runs, head jouncing slightly with her pace, but he loses his grip when she topples and he shoots sideways over her shoulder onto the ground. "No!" he yells, non-specifically at anyone as he tries to scramble up to his feet and hide behind Tanyuu even as she's on the ground. He absolutely won't stand up to a stunning shot.