The 8 or 9 pitch AB happens a lot for pitch to contact pitchers, too. Actually more IMO. They can’t get strike three past a hitter, leading to lots of foul balls and long ABs. Typically, the guy starting the 5th inning with 82 pitches isn’t the guy with 7 K’s at that point, it’s the guy with 2. The error in analytics is not in thinking K’s are a positive for pitchers. Rather, the error is in thinking K’s aren’t a negative for hitters. As Ash notes above, an out is NOT an out. Nobody ever knocked in a run on a K.