i break down high level gameplay.
a very common situation u see every round is when you see someone run away with low hp/ap. you chase after them while they run away to their team so ur in a 1v2 or 1v3 situation which is very risky.
IF THE GUY RUNNING AWAY USE MED: you kill him and then run back to ur team
IF THE GUY RUNNING AWAY USE PILLS/VIAL: they roll away while using pills+vials and you can't kill them because pills/vials heal a lot in an instant. also since you are in a 1v2 or 1v3 situation you take more dmg than you dealt which is very bad. Also usually way better to kill someone in a 1v3 situation then die cuz they waste time trying to kill u so u make space for ur team to backstab. but if u dont kill its very bad cause now they have advantage.
buffing meds is bad cuz they heal so much already. better nerf pills/vials
also no one cares about sharing meds cuz it takes too long