At what point does Riot consider voice chat?

The answer is never. But in a perfect world, why won't they do it? I get the lack of control inherent to voice chat apps, but at this point I find the chat to be counter-productive in almost all of my games. It is unpractical to communicate by typing, unless you are in a game state that doesnt require trying, hence the increase in toxic behavior when the game snowballs. I dont mean the pings, they are helpful; I mean the chat specifically. THoughts?