Pretty sure it's just because Io is one of the most communication dependent heroes in the game. Your team needs to know what you plan on doing so they don't blink on accident and fuck up a fight because you are too far away. This doesn't really happen that often like sub 5k.
Please sign in to post comments.
Because supporting is no fun, and io balances it out. Your impact is never that big, unless you hard counter someone. You get bitched at all game by shitty carries, you never feel fully in control. Sometimes you get one shot by sven and pa, that's just life. I don't see a problem just making observer wards and smoke free, so supports can have less pressure.