Reasoning for Darius Patch 7.11 NERFS?

"When Darius triggers Noxian Might by applying a fifth Passive - Hemorrhage stack via Q - Decimate, Decimate now properly only applies one stack of Hemorrhage to other units hit."

Where is the context to this change or "Bugfix"? This mechanic has been used extensively by Darius mains all around who even acknowledged that mechanic and have learned how to play with it including myself. Most have always thought that it were just a feature in Darius's kit and have used it to their advantage in teamfights because of that. To see such a feature taken away all suddenly leads me to believe Riot doesn't acknowledge the fact it is an actually used Mechanic by alot Darius players. I would just like to see some context behind this change.