The whole point of voice chat in games is to
A) Make it easier to communicate mechanics
B) Make it so others involved in the same thing have an easier way to alert others to something that may happen.
If I have to mute someone, who is not the one communicating mechanics, but alerts us to something else going on that we need to be aware of, then I miss that altogether, and likely, die.
This has happened on more than one occasion. Yet, I get blamed for muting them because I don't want to listen to them mouth breathing/baby crying/rap music/them eating.