M&B isn't a serious teamwork based game like Squad, nor is it a tactical shooter with a small amount of players in a match. It's 200 players in a chaotic environment, with a young player base. Voice chat would be endless people shouting, screaming, singing, playing songs, it would be an actual nightmare, and trying to mute so many different people with the clunky teammenu would be horrible.
If they do implement voice chat it needs to be proximity only, at least.