You all didnt read properly. They are suggesting asthma patients to manage their condition well so that they do not rely on the inhaler long term. So if the patient knows what will trigger an attack, he or she should actively avoid that trigger. This should be the goal of every asthma patient regardless if the inhaler is bad for the environment.
My close friend's niece died of asthma more than 10 years ago. She was only in her 20s. No one should die of asthma in Spore.