It’s not a “problem”. I have the PST style on my Duster right now.
All I’m trying to say is that if you’re worried about the strut rod coming apart, with the QA1 style you need a minimum of 2 things loosening up (both jam nuts) and then the adjuster has to spin off a ~1/2” of threads.
With the PST style, if that bolt through the LCA loosens the whole thing comes apart. So, if you’re worried about the strut rod coming apart you’re actually running the one that will come apart more easily.
But like I said, I’ve run both styles. And to be fair, neither will come apart if you install them properly.