It all depends on your perspective. Frank Thomas overheard that conversation with Smoltz and the other Braves starters, and when he sat down with Smoltz, he talked about how if the zone was taller while he played, his home run number would have had a 6 in front of it because he loved when a guy attempted to go up the ladder. He also talked about how Tony Gwynn would have been a multiple time .400 hitter with a more narrow zone and added high zone. I think one major issue that has been missed recently is how much the swing and miss hitter has really made pitchers better. Baseball's growing acceptance of the strikeout has certainly allowed for a lot more pitching success. Imagine the context - runner on second, bottom of the ninth, tie score. Dennis Eckersly facing one of the top ten hitters of the early- to mid-90s. Eck could reach back for everything he has, and he would have one hitter with a 15+% strikeout rate - Shane Mack, oddly enough, who is #10 in batting average from 1990-1994 among qualified hitters. One other hitter is above 13%, and four guys had higher walk rates than strikeout rates. Craig Kimbrell or Aroldis Chapman facing hitters 20 years later. One guy has over a 20% strikeout rate, 3 are over 15%, and 7 are above 13%. The only guy who walks more than he strikes out is Victor Martinez, and it's by 0.1%. I'd put the odds at at least twice as high that the pitcher would be able to strike out a top ten hitter in that situation currently as 20 years ago, and I think a big part of it has nothing to do with an expanded strike zone - it's hitters swinging and missing a LOT more.