Victim blaming is completely different, that's saying that you deserved to be abused. Nobody deserves to be abused.

There is a longitudinal study on PTSD cases that investigated why only 35% of people suffer PTSD while some of their colleagues go to similar events and while going through trauma processing, bounce back after some time.

The main finding was that many of them found helpful frames of references to manage their feelings around trauma (often along the lines of... the guy next to me was worse off, at least I am alive) and that allowed them to go into post-trauma growth.

Assigning present-day problems to old events is just a very common way for people to take on a victim mentality and avoid dealing with what is in front of them.