Although the more frequent use of Medivacs will increase the potential for more accidents, there is also the possibility that the increase in numbers of mishaps may be driven by business motivations and pilot skill/decisions.
Case in point: Local Lifeflight departs in IFR conditions from helipad 5 miles east of airport, flys southwest and crosses through the final for airport's runway while air carrier on ILS in IMC conditions, misses AC by x miles, and calls for his IFR clearance.
Same company, different time, receives IFR clearance and release which locks up airport's IFR traffic due runway configuration. No void time given. After 20 minutes, pilot is asked his status and he advises he is hovering to burn off fuel and needs to do so for another 20 minutes.
S c, d t, practice ILS appchs during home game for football team with traffic rate at 35-40 arrivals per hour! Requested pilot discontinue appchs for time being, he declined and wanted to resume. Helicopter on final doing 70kts with corp jet following at 180kts.
Investigative report from last year leaned towards business decisions that were financially driven...