Why can't we disable minimap casting?

Can the fine programmers at RIOT please add this to some sort of to-do list? I've wasted so many ults when trying to flick shot a skill after someone has flashed or dashed...

Surely I can't be the only one having this problem?

An option like disable clicks/casts and or make the minimap transparent to clicks i.e. if I rightclick on the minimap it'll be as if i'm clicking on the ground would also be nice