No they shouldn’t.
You going to punish new players who are learning? How about vision impaired players? How about people who have already received warnings and disabled chat to avoid punishments? Or how about just people who tired of constant spam and trash talking in bgs? It honestly gets annoying, especially when you have one player mouthing off and trying to tell you how to play.
My favorite it when you’re behind by one cart in mines and some player says “You’re all garbage. Next.” While I think chat is important, it’s also equally derisive and I can more than understand why players don’t want to look at it.