Ping usually only affects hit timing and makes things look fishy if it's over 150, in most cases 200. Therefore, having good ping cannot magically make evidence insufficient. What can make evidence insufficient is there not being enough instances, it being in 1st person, or the fact that the player simply isn't hacking. Lag almost never affects sufficiency either.
My friend, I'd just like to see the videos or any proof you have that was used for these DQs because they were not approved by us, and there are multiple claims these battles even happened.
If there is no proof given, then there is no choice but to ask you to remove the wins.