Me and my friends got DDOSed mid game

Me and my friends were winning a game after an enemy had some computer troubles and when he came back he raged at us and eventually we were coming back to win and out of no where all three of us disconnect at the same exact time, (We all live within 10 miles of each other) and my friends sister went and checked the neighbors house too see if they lost internet and they hadn't, when I went back and looked at the game I noticed that from the minute we DCed to the end the enemy team rushed straight mid and pushed the game.

To add another thing one of the opponents added me and proceeded to tell me that the game was "freelo", he also knew we all DCed at the same time.

Another thing is I have been LoLDropped before and I know it when I see it.