Yep, that sounds about right. There is a two fold issue though with this, and that is that the soldier doesn't want to often participate by opening up and letting down that military wall of trained aggression, plus the treatment side is miserably failing due to the sheer numbers of veterans affected compared to the treating physicians available.
To be honest, what they need to start doing is looking at the long-term viability of how a different approach can take affect.
Many soldiers still see other soldiers they served with, even those with PTSD. What they need to do is start grabbing one soldier at a time and dedicating one therapist to them for a 3 month term, 8 - 15 hours a week going out and doing things, talking about how a situation makes them feel, working through solutions on how to tackle it, then setting them out to do it themselves and report back. Going head on one-on-one will then allow them to go and help their mates out. That is what soldiers do... they help their buddies who want to be helped. They have to recognise and be taught they can't save someone who isn't ready to be saved, but when you present walking, talking, physical evidence to a soldier, i.e. their mate is now doing better, that is what they recognise.
This then removes a lot of burden from the VA and other country VA systems, because they literally create a buddy system that will perpetuate through those who want to get better, all because they stopped trying to treat the masses and instead focus one-on-one and get one soldier functioning... then let them loose upon their buddies to help them. They may never work again, some may work again... but when you have a network of affected guys suddenly getting better, calming down and causing less issues within a community, and even returning to work, thus reducing financial burden upon the Government, you create a sustainable working model that a soldier understands.
This stuff isn't rocket science... but so called professionals are all too busy sticking their heads in the clouds with quick fixes, which just doesn't work on combat PTSD due to the training instilled.