Never mind. Via ferrata is a business, just like the hiking paths were. I still do not see why via_ferrata keeps popping up here as if it was golden rod.
BTW: I stopped fighting for my hiking paths that turned via_ferrata by some tourism agency investment. I am fine with them off the standard view 
On the OSM Carto issue tracker, I observed people who would not map a path because of it appearing on the standard view, I cannot fault them.
PS: The picture linked above certainly highway=ladder – under a the most special tag should win rationale. That it’s part of a via_ferrata route given away by the steel cable on the side to fasten the via_ferrata kit. If that was a mere assisted_trail on a hiking route, the picture would look much the same, except missing the extra via_ferrata cable, both besides the ladder and besides the path.
