Yeah, but If appeal of a shortstack is that they are short and well, stacked, would't the difference between 8ft and 5.6 be same between people that are 6 and 3'6 feet. So if someone chubby as Cait is companion to 8ft tall champion, wouldn't Cait be a shortstack to them? It all seems relative.
No, because that implies that someone shorter than a shortstack couldn't consider them a shortstack or be attracted to shortstacks. Shortstack is more than just about height (though it is a factor), it's about other qualities.
If you have $1 million dollars, you may or may not consider yourself rich, wealthy, well-off, or any number of terms, but I think most people would not consider you 'poor'. If someone else has $900,000, they are 'poorer' than you, but I think it's still fair to say that most people would not consider them 'poor'. Almost everyone is poorer than someone with $1 billion or even a person with $1 million. That does not mean that almost everyone is 'poor' or that those two consider everyone else 'poor'.
Similarly, just because someone has lighter skin than you, they aren't an albino. Even if the difference in tone and color is sizeable, there's accepted and acknowledged factors and conditions.