Having PTSD doesn't mean that you become immune to everything in life that isn't life threatening trauma or sexual violence. Nor does it mean that every aspect of trauma that isn't death & sexual violence is problem free.
If my biggest problem is grief? That doesn't mean I don't have PTSD. It just means that PTSD isn't my biggest problem, right now. It may be mobbing on, and complicating my grief, or it may be a non-issue. But, either way, I'm allowed to have 2 problems f*cking my life up.
Same token, while IMO PTSD itself is pretty straightforward, the effects of trauma can get complicated as f*ck. What's giving me the most difficulty may have little to nothing to do with the events that gave me PTSD, but instead be related to other things going on at the same time, or things that happened before or after. Things that if they existed without the initial trauma may have f*cked me up all on their own, or may have been no big deal. Or may be very coloured by my trauma history. The only real point that matters? Is that they're f*cking me up, and need sorting.
Just because emotional abuse all by itself won't give someone PTSD, it doesn't follow that someone with PTSD won't have been abused emotionally, or if they were, they won't have lasting problems from it.