I think that 'shorter' cuffs would make him appear taller in that picture, but I also don't remember the last time I saw someone wearing a suit and saw that they had cuffs and thought "Huh, those are too short/tall". They're what, 2 inch cuffs? 2.5 inch cuffs?
And yeah, I'm totally open to being wrong. I tend to learn more when I am!