I have never seen someone so good at getting picked off at first. Where do you put that into WAR? What part of WAR measures how a guy hits away from his home field, or how a guy can't hit because he is worried about being traded around the trade deadline.
Things I find amazing: That the analytical folks who come up with formulas for things like WAR somehow decided to only count home games (or is it only away games? Or is it that one should count differently than the other?). That those same folks think they should measure results of plate appearances rather than the alleged thought processes and worries in a player's mind while at the plate. That despite the constant attention and coverage and devotion to recording virtually every single thing that happens in every single baseball game that nobody has thought to record players getting picked off on the base paths.
That someone can apparently think those things are actually true.