They got much stricker with those addons. I remember back in vanilla decursive was the big one, it made it silly, just spam it for you and the addon would do the work finding the people that could be decursed/cleansed etc and doing it all for you. Addons of course still exist. If you are a serious raider you are not going to get very far without something like deadly boss mods for example. I can understand why it annoys people it does seem silly that they design encounters expecting that players will have to use deadly boss mods and threat meters for example to be able to do them yet they are not a 'core' part of the game. For me it's no issue, being in an end game raiding guild you kind of get used to using 'necessary' mods and putting in the work to make your UI as good as possible to assist your style of play.