Voice chat would help to Balance some champions IMO
Riot recently started to talk about voice chat and i feel in need to share my opinion I am and was all this time a hardcore player of league and dota, achieving in both game a decent Rank (though i don't know how much 4k mmr is in league rank system)
And the most important thing is that it helps to balance so much heroes in dota2, here let me explain to you
You must know that voice chat is almost never used in lower tiers of the game. All those games i did from 0 to 4k mmr, how much people used voice chat? something in like at best 10% of my games
however, when you watch every single high elo streamers like RTZ SingSong, or AdmiralBulldog you get to see in every single game everyone using the voice chat https://www.youtube.com/watch?v=nXlmT9s6Kfs
this is an example of a game of Snith (Rank 1 chen in the world), if you're interesting to see how communication works watch it
but why am i telling you this? https://i.gyazo.com/6891b328c64d43d1fffd4dc28d928648.png
Voice chat and communication plays an important part into the balance of the game, take a look and see Io's win rate going from 37% to 49% win rate in high elo after 5k and the reason to this is because Io is one of the most teamplay reliant hero in the game https://i.gyazo.com/6c170f85e6ac026bd16194ad3fe94a2c.png he needs to manage the distance between him and the ally, he needs to position himself and needs his ally to position well to slow a target, he needs to tell his ally to heal him in order to heal the ally more
and there are so much examples like Oracle who can single handle lose the game if he doesn't play on the same note than his ally
So how is this related to league?
is one of the most picked support in pro, his kit is so fcking great as a support and his W is so broken. However he has 46% win rate in soloq and 47%/48% in diamond and no one picks him because of the lack of communication
he's so bad in solo queue even in high elo that i see some people suggesting buffs when he's already so strong
Voice chat would allow tahm kench to be infinitly better in high elo as people in high elo uses a lot more the voice chat than lower elo
And it isn't only tahm kench
MM wouldn't need a premade anymore to play
ADC
would become stronger in solo queue as communication becomes better
all of this makes the balance between soloq/lcs way easier
just my 2 cents