Winnie....the question I posed refers to the "Urgency" not the Type of tasking.
Airport to Airport would make an Airplane the better choice.
Most Patient Transfers can wait for daylight....but where this happened the level of medical care available at the location where the Patient was located ...may play a role in raising the Urgency.
I have flown in some awful weather at night to fetch some fellow who had a broken arm or lacerations....while painful...few folks die of broken arms or wounds that are not bleeding........if you get my point.
If I recall properly....the Patient was fetched by Airplane following the crash.
So...it would be interesting to know exactly what the situation was re the Patient to see if Ornge uses some sort of filter to determine if an aircraft is launched or if they respond to every request without assessing the priority somehow.