This isn't particularly accurate. WAR, on Fangraphs, uses UZR does it not? If so, it isn't nearly as reliable as you are making it out to be. Fangraphs says so itself. It's not "unreliable" (as the article says) but it also is significantly less reliable than even OPS. And, depending on the position the player mans, more limited for some players than others. And yet, despite these demonstrable limitations, we toss year to year WAR comparisons around (across different positions) like we're totally unaware of these issues. And so help you if you besmirch WAR even in the slightest....