Well medics revive has range, so you can throw it. Also it will teach people not to go out alone. Finally killing gives the least amount of xp, so ideally people wont camp because it wont be beneficial enough.
I'm not saying it won't happen, but I think there are enough blocks in place to keep it from being a problem.
Well no you draw an enemy medic out and then you kill him depriving the enemy of a medic.
If I recall correctly, you need to have purchased an ability to finish off incapacitated opponents.
Nope.
Is there a link? Cause in every single video that i have watched, no on finishes off the person.
Trust me, I have seen it in recent videos.