Watching the latest Practice run (from Apr 30, 2014), I found it interesting that the last part of the story took...

Watching the latest Practice run (from Apr 30, 2014), I found it interesting that the last part of the story took place within a Rogues' Phase.

Am I right in thinking that the part about understanding their foe (its origin, purpose, weaknesses, etc.) could have also happened within a Discovery Phase, and the actual battle could have happened within a Perilous Phase?

In that case, how differently do you think it would have played out?
I imagine the battle would probably have lasted longer...