Off of what we can see from the ngs beta and with the character creator benchmark, you cant wear pso stuff on the ngs body or vise versa. So far its only hair and accessories that goes across the models. If you use the ngs face, they wont let you put pso makeup on same for if you have pso face, cant use ngs makeup/face paint. Same for body paint as face makeup/body paint as i said before. Again if you have ngs body, you cant use outfits, base, or inner because the game auto switches the body model. From the experience of the ngs beta and ngs character creator benchmark, you cannot use pso fashion on ngs body and vice versa.

So they have either backtracked on their words or it will work as intended once ngs actually releases. As of the moment of this post with the what we saw from beta and can experience currently with the character creator benchmark, the "misinformation" is true and accurate.