Looking at the full details of the voice comms addition, it’s not quite as bad as you might fear.
As of today’s patch, Heroes of The Storm now allows your team to share their exact and unfiltered thoughts on your performance without having to go through the trouble of typing them.
If an individual finds themselves tagged frequently for being abusive via voice chat, they may find their speaking privileges revoked while still allowing them to keep playing.
Also yes, I know the header art is from another Warcraft universe entirely, but I needed a picture of Thrall screaming.