Couldn’t be more hilariously wrong if you tried. No one has spent more words criticizing WAR than Bill James. One of his more recent epics on the topic: https://www.billjamesonline.com/the_...blem_with_war/
Original versions of WAR were from the early years of baseballprospectus. Fangraphs and baseballreference have since taken over. James has never really had any involvement with any of those.