Yeah, absolutely. This already has been happening to WoW where the casual players have been completely deterred from doing normal content latest years and now look where the game is.
The addon does sound it has its usefulness if used with precaution in a progressive team to get the stuff you need.
Such a pity its in a such sensitive grey zone of the game where it has its good but absolutely against ToS. Leaving the players to risk and wonder if its worth it. Gameplay wise? Absolutely, if snitched on...Then its game over. :S