That was my initial instinct as well, but thinking about it some more, Rod's probably thinking: "We are money in the shoot-out, so if we can win in OT great, but it's important for 2 points that we don't lose in OT". Not that Bean would lead to a loss in OT more than Hamilton, but it's probably RBA's thinking that he's still young and not as refined defensively.
Canes have 1 OTW (TB), 1 OTL (FLA), and now 4 SO wins and zero SO losses, so that line of thinking is probably pretty sound.
I liked the strategy of possess the puck and Florida can't score. They got a couple good chances and only gave up one really good chance that Slavin neutralized.
That said, Bean should be good at maintaining possession in OT as well.