The people who are saying "we don't need to know anything besides how to dodge red circles" make me sigh. No, not every single fight is simply dodge the red circle. Sometimes there are attacks you need to move out of as a tank that don't have red circles, sometimes you need to have groups split up in two and and stack, sometimes adds need to be faced a certain way or placed at a certain area otherwise you wipe, sometimes certain adds need to die in a certain amount of time, etc, etc. You can still wipe if you go in blindly and "know how to avoid red circles."
Sure, wiping x amount of times to figure out a fight might be fun to you, but not everyone sees it that way. Not everyone has time to whittle away doing it. Not going in blindly doesn't make someone a "bad", likewise going in blindly doesn't either. It's preference.
If you want to demand it be one way or another, I suggest making your own party finder group.