It’s a bit ridiculous to say the only obstacle between us and “monstrous behemoths created in labs” is some sports regulations ^^'. Luckily there are already laws that severely restrict what you’re allowed to do with genetic engineering, so don’t you worry.
But coming back to your “monstrous behemoths”, wouldn’t some basketball players for example already fall in that category ? How tall is too tall? When it’s about basketball, you could be 8 feet 1 (2.46 m for my metric brethren) and no-one would try to have you banned from the game, they would probably congratulate you on your lucky genetics instead. Similarly, I’ve never heard of any suggestion of, say, enforcing a minimum resting heart rate for endurance based sports.
Yet if you’re a woman and too muscular for some obscure regulatory body’s liking, you face the risk of being ostracized and banned from competing. The same genetic lottery winning ticket would in this case be considered an unfair advantage. This goes to show that unfairness is not rooted in any hard, undeniable, mesurable quantity, but is at its root a cultural phenomenon. Fairness is in the eye of the beholder, there can be no objective measure for it, -which is why I’m say it simply doesn’t truly exist in sports.
It’s true they would probably be more useful to the average keyboard user than say the scroll lock key, or the fucking copilot key. But to be really useful, they would have to be easily accessible without moving you bands, or else it’d just be faster to use a shortcut. Keyboards with macro keys do exist so maybe get one and map them to CTRL+C/V