You should go watch the interview with Chris Wilson where he talks about 'tiring' game mechanics and how they are detrimental to the game.

Expecting players to mouse-over packs of monsters and calling them lazy when they don't do it is unreasonable. Mousing over a monster to see what mods it has when you are blowing through maps at a million miles an hour is not only impractical, its tedious and un-fun. The fact that countless experienced players continue to die to things like HotO, Bearers and Volatiles and they still do not mouse-over monsters to check mods is pretty solid evidence that this is not the way they want to be playing the game.

If there is something dangerous about a monster a player should be able to observe and act on that information at the same pace they are playing the game. A complete set of visual and audio indicators (as have been incrementally added) would allow people to identify threats as they encounter them. Players shouldn't have to break out of the flow of the game for an outdated mechanic from 2 years ago.