I mean, you're clearly lying. I think you just specifically have something against Hashinshin.
He had one game where he had 0 kills in the past 3 days, and that was not duoing, and on Mundo jungle. The games I'm assuming you're talking about were not lost due to Hashinshin's influence alone. There were many factors.
Nowhere did he win 10 games in a row in the past 3 days.
He's only played 15 games with him so far today (and the past 3 days). He lost 6 of them. His highest win streak was 4 games. He won 9 total.
FINALLY, his duo's winrate is only 64%. Far cry from the 70% you claim. How much of that do you think was climbing and not playing with players near his skill level in diamond 2+ MMR? Considering he's only played 200 games at a 64% winrate to Hashinshin's 500+ at a 54% winrate.
FFS, Hash has a 63% winrate with over 110 games on Aatrox in the past 7 days, one of the worst champions in the game atm and almost CONSTANTLY playing fatigued, and you'll probably still cry about how Hashinshin is a terrible player, I bet.