Who determines WC winners? The routesetters!

Adam Ondra, in his recent interview, made this very revealing statement: "...most of the lead competitors are shorter and (therefore) lighter. My height rarely gives me an advantage in lead competitions, because the route-setters don’t set reachy moves." My interpretation of this is that route setters set lead comps to favor short, light climbers.  i.e. the setters pretty well determine the type of climber who succeeds.  If they set routes differently, some (many?) of today's most successful climbers would not do well.  btw, its seems to me the opposite is true of bouldering.  This last year especially, the boulders were set to favor taller climbers.  But in both disciplines, the setters mostly determine what type of climbers do well and which don't.  That's what I take out of Adam's statement, anyway.