so, in that situation it can happen that some player can not advance to next round even if kill all 5 opponents. for example, if King of Gods (5200 points) participates in tournament, and he plays vs 5 players with 1040 points(it didnt happen, but it could happen), he will earn total of 20 points even if he kill all opponents. and he will be eliminated, because 36 players will have more than 20 points.
so I think that rule is very unfair to higher ranked players. this is just my opinion, but no problem, you wrote that rule on the beginning, so everybody could know for it