Hi,
We don't have demographics on our players, of any kind. I doubt we could even tell you which country the game is being played in the most, let alone the colors, genders, sexual orientations, ages, marital status, religions, and medical conditions are that they have. Heck, we couldn't even guarantee that all of our players are even HUMAN these days, because it's always possible that aliens or animals or mythological creatures have gained access to our books.
But I assure you that no effort was expended in attempting to offend any portion of the fan base thereof. This is, after all, a universe where race and ethnicity are largely less important than whose flag you're fighting for, even if it's House Davion!
I would therefore surmise that it is possible one might be reading too much into the rules to presume they are stereotyping anything. As you indicated, you simply decided the compulsion fit the symptomology better. But if the rule offends, the solution is simple: Do not use it. If you want to say this character's asthma has no impact on his performance at all, that's not even worth a negative Trait point, because you've rendered the matter no more significant than him having blue eyes and red hair. Demanding additional specific, special rules for every single, special instance is, after all, how MW3rd/CBTRPG became a 10 year long set of rules bloat, and we boiled a LOT of stuff down into abstractions to specifically do away with that. The Word Health Organization, as of right now, names at least 6,000 rare diseases and 12,000 disease categories. Multiply that by the number of human-occupied worlds in BattleTech, and it's possible your brain would melt from a heretofore undiscovered version of encephalitis (I have no idea, though; I'm not a doctor).
If you want an apology, I'm sorry, but no offense was intended, and it seems rather pointless to be offended by a game mechanic that the GM is specifically authorized to change at will.
Thanks,
- Herb