Personally I suspect it's the mental block they have in trying out any newfangled tech (story editors) that holds them back (wot? hyperlinks, wots all this?!). Given enough general writing expertise, writing branching storylines in a cave style is simple.
In your case, you're uniquely well set at writing that kind of branching yet meaningful narrative, so I'd say you're objectively strong at this format, far more than a migrant writer from the other side would be. Furthermore, if those old timers read your work (no coded variables, though you implicitly manage timelines and variables very well through your notes), I do suspect a couple would jump over and dip their feet into CYoAs (it'd be a nice novelty for them, I suspect). Then again, the audience here is on the young side, which is perhaps what leads to a self-fulfilling prophecy that older writers wouldn't fit in.