Add an option to disable global ult aiming through the minimap

I think there used to be an option in the past, it doesn't exist now, but this is extremely annoying and i wish riot would add this option. Sometimes i cast global ultimates and they fly the complete other direction from where i wanted them to go because my mouse was hovering top lane in the minimap when i casted the ult..' https://www.youtube.com/watch?v=hoiupFD33LI