Positive!
it's fair to give the one who made more damage and more effort in this AR or CE to be the top, I have had this a lot and probably daily, I don't really care about being the top unless my group is going for a 6/6 and sometimes it makes me go
if we did 5/6 and I actually had the same kills for it to be 6/6, so yes this is needed and would really make players actually keep fighting the entire AR or CE for tops instead of ksing.