Just because I don't have fear, doesn't make me irrational.
Best-available idea doesn't make something a good idea.
Not all final girls make it to the end by fighting the monster. Some of them hide. They stay quiet when their family needs them. They're not waiting for their moment. They don't even know if another moment's coming. They just close their eyes and wait for it to be over. Truth is, some final girls are cowards.