The first couple of times when I first got into dungeons, I notice that I don't really look at the party chat that much. Just until a stop for certain mechanics and whatnot only. Then, I got into trouble because I didn't notice the chat that was explaining more of the boss' mechanics so we wiped.

It wasn't because I didn't choose to look, it just seems that the fight took all of my attention.

In order to remedy that, I just put a notification sound for Party chat, the same as when someone PM you.

I would like to suggest to SE to put a notification sound for party chat as default, so people actually notice it.