In his video he covers some great material. Having watched it, and having experience trauma myself, here's some thoughts:
1) Its so important to have a caring community around you when you suffer trauma.Sadly in my childhood I didn't have this when I was being traumatised. Then later, when I faced the trauma as an adult, I again lacked this support. This made things much more worse than they would have been with adequate love and support.
If Diane Langberg is right that Trauma is the new mission field of the church (and I think she is) - then as a church we need to grow in how we lovingly support people through trauma.