Shadowrun's Stupid Allergies

I don't play Shadowrun. The concept to me is sometimes hilarious, but that hilarity can't get me to play a broken system with weirdly insensitive lore. But what I always find the funniest is the SR5th karmic system (and one specific group of flaws in it.)

At character creation, you're given around 25 karma to spend on items, backgrounds, enchancements and resources as you see fit. Reasonably, better merits cost more karma. To offset this, you can give yourself flaws to gain back more points to spend. Like merits, the worse the flaw, the more karma you earn back.

One of these flaws... are allergies. And there are so many of them.

There are four classifications of allergies (Common, Seasonal, Uncommon, Rare) and four levels of severity (Mild, Moderate, Severe, Extreme.) That's 16 entire individual traits dedicated to allergies depending on your game. If you took the "worst" option, you'd get over 18 karma points back. You could buy a gun with that.

It's so detailed that there are descriptions of what to roll with each severity. Here's "severe:"

Contact with the allergen results in extreme pain and actual physical damage. Apply a –4 dice pool modifier to all tests made while a character experiences symptoms. The character also suffers 1 box of Physical Damage (unresisted) for every 1 minute they are exposed to the allergen.

Is it accurate? Kind of. As someone with varying levels of different allergies, it's true that they can suck. But was it necessary to make sixteen entire traits based on that? Shadowrun sure thinks so.