In reply to Dreamsandweirdness
Then in that case, I do actually agree with most of what was said in that article.
And when Adam actually starts preying on her fears, near the tail end of the battle when he's grasping for whatever tactics he can and he tries to scare Yang by saying "Do you think you were faster than you were at Beacon?" like, it actually works. You can tell she is shaken up from it, because when Adam starts attacking her after that she stops attacking back. All she does is dodge and flail around, and Adam gets a few good hits on her when he previously didn't. Go and rewatch the fight if you need to, because that's what happens.
I do however have a bit of a problem with the bolded bit. Adrenaline is released in order to cope with hightened stress, but, most importantly, in this situation, it doesn't affect her short term memory and she had just been ducking and dodging around each and every strike that Adam had made. Now, admittedly, I'm no doctor, but to me those two things completely contradict each other, turning it into plot convenience rather than as a result from the PTSD.