[Rito Gemz pls] If we can disable /all chat then why can't we disable team chat/entire chat?

I know that idea hovers around the interwebz for eternity and I wonder, "Why the heck that isn't a thing?". Seriously, though. I can mute whole enemy team with one flip of a switch, but why I can't do it for my team too?

I find it pretty annoying to have to mute everybody in my team, then move the chat window out of my screen, then gouge out my Enter key, so I won't be tempted to say a few harsh words to my team and on top of that mute pings, so they won't spam me with that too, for I haven't responded to them.

For example, my last game's chat can be summed up with 3 words: "gg", "lost" and "surrender". For f--- 40 minutes. There is no value in chat like that, I'd rather not have one in the first place.