The more text the more awful fighting becomes. I'm someone who reads everything on the screen, if chat or kills. That means I easily get distracted by any chat (with 200 ppl online its kinda awful), which makes my fighting even more worse.
It might be a good feature if you really want to say sorry for any teamhit. In most cases it doesnt matter though, as you either notice it yourself (especially in melee, in ranged its often hard to tell) or just ignore it as most people do.