In partial season samples, the rate stats are meaningful. Strike out rate, walk rate, ground ball rate and fly ball rate. For batters, ISO also becomes meaningful by 200 plate appearances. WAR describes the past but is not that useful in projecting the future. When comparing Suzuki's rates in those areas to his career norms, a change in pattern can be seen. His change in performance is not just due to luck. Strikeout rate is a career low and walk rate a career high. Fly ball rate and isolated power are career lows. He has become a different hitter. His rate stats do a much better job of projecting as well as describing than WAR, but it is much harder to translate into a value. I would be surprised if WAR has much consideration in any teams analytics department. The basic rate stats play a key role in data analysis.