It's odd how completely opposite I understand that same sentence. I understand that sentence to be the same as:
"Her story is sure to be a compelling one and a great example of the extreme barriers the right mindset can overcome. In this case, an exceptional person managed to overcome even the apparently insurmountable barrier to get out of their dire situation."
"Her story is sure to be a compelling one and a great example of the extreme barriers the right mindset can overcome. In this case, an exceptional person managed to overcome even the apparently insurmountable barrier to get out of their dire situation."