There's a difference between "exercise induced asthma" (EIA) and asthma. I know, I'm a college wrestler and I have both. And yes, I was prescribed albuterol as a prevention medicine before every practice and every match.
If you read the prescribing info for albuterol, you'll see very clearly that it is both a rescue medicine AND a preventative treatment for EIA. If I'm having a regular asthma attack and my albuterol doesn't stop it, I know to immediately seek help.