User blog comment:BlitzerRyuusei/Octane, the Shadow of Fear/@comment-10256611-20130823085810/@comment-5331854-20130823215315

The thing is, some people are comfortable with R + Click, other people are comfortable with ALT + Click and some few can't make up their mind, but are still competent while using both input methods.

Directly denying a possible control input for a certain situation (and you can regard a champion being "a certain situation") is one of the worst design flaws you can create in any given situation and game.