I went back and carefully read what you linked I suggest you do too.
The number you are citing matches end of life anxiety studies. This is not PTSD and especially not chronic PTSD or complex PTSD such as my own, which I’m telling you from decades of anecdotal experience being in the psychedelic scene as well as research into the pharmacology of these medications, that MDMA is the gold standard for PTSD treatment.
That doesn’t mean better treatments won’t be developed or better drugs won’t be developed in the future. Or that psilocybin and LSD don’t have some efficacy in treating PTSD. But MDMA works better for the majority of people because it helps to relax the fear response in a way that classical psychedelics do not.
If I was to invest personal time and money into a classical psychedelic for PTSD treatment it would be mescaline. Which coincidentally is in the same class of chemical as MDMA.
And if I was to use psilocybin to treat PTSD I would do it at the tail end of an MDMA roll. Or as an adjunct to therapy. Depending on the PTSD, I would expect this to take multiple sessions and not be one and good for six months like in anxiety depression treatments.
PTSD, especially CPTSD from child abuse etc, is very difficult to treat. The success rates in anxiety and depression studies aren’t necessarily applicable.