I have a TBI and a few other disabilities and weak auras and DBM help me with IRL focus of my screen and what’s going on in the fight.
My disabilities are one of the many reasons I don’t do higher level content. I can’t keep up with the combat and it’s really frustrating for me. I don’t play this game to be frustrated, I play to have fun.
If add-ons help me, I’m certain that they help others. You have the option to not use them. What other people use shouldn’t bother you, because it’s honestly none of your business how they play…as long as the end result is the boss being dead.