[tkamiya]

Sorry, but out of curiosity, what harm comes from printing it through one side or the other? Does it really look drastically different?

You should try it sometime. Pick a few image and flip it right side left. Depending on image, it will give you totally a different impression. I heard somewhere what one perceives in this kind of translation has to do with one's background, ie. nationality and places you grew up. I forgot the details on how eastern vs western background affects how one perceives.....

But for this particular image, it looked different enough that I found it objectionable.