Possibly correct. I suppose it could be argued that the algorithm used calculated he should be thus based on ballpark he played in or something. But if I had to bet the dinner check I would bet it is an error.
According to baseball reference he hit 4 HRs in 137 ABs verses LH pitching and 7 in 378 vs RH pitching.
That is 1 every 34 ABs against lefties and 1 every 54 against righties. So there is a basis for more power on the card against lefties. But .....
Absolutely no way he ever hits 7 HRs in 378 ABs with that card. Anyone want to pull out the old "the cards are designed to reproduce stats if replayed against the same opponents as real life arguument here"?
With power W no HRs off the pitcher card and only 1 every 2,160 rolls off the hitter card.
My first thought is this card is from a chevy edition with the usual statistical shortcomings. But even that would not explain such an inaccurate card.