There are better validated methods of dealing with PTSD
If PTSD wasn't such an easy malady to fake, the treatment methods results wouldn't be so easy to fake. I have been in more than one VA facility waiting room and even a few group sessions where the majority of the chatter was what to tell the shrink to work for that golden 100% rating. These 'studies' will produce whatever results the study managers want.
As far as treatments, do I really care if i'm T-boned on the road by a stoned driver, drunk driver or oxycontin buzzed driver, anti depressant drugged driver ? Nope! They're all bad results. The bad outcome that this PTSD diagnosing flood can produce in the long run will be when it gets categorized as a serious mental illness. That they will find a bitter pill to swallow as mental health maladies are at the forefront of the 'you cannot take care of yourself' age. Can't handle your money, can't drive, can't have a gun et al.
Personally I think a VA golden 100% rating will come back to bite the recipients as the liberal state decides they are too mentally ill to exist.