I have no idea what went into it, but if the committee members were asthmatics and medical professionals, they might see it as a way to protect other asthmatics against a bad drug. There’s a reason that doctors, asthmatic or not, don’t recommend the stuff. Asthmatics on the committee wouldn’t change that.
You can argue the merits of Primatene all day long ~ good or bad ~ but the committee is reported to have sidestepped such a difficult task.