I was just giving the Barbarissa example of one where you might as well Arms Length / Surecast it rather than fret about it too much.
Last I recall, it has a mech where the hair anchors you with about a 10 - 15 yalm movement allowed and a whole arena knockback happens with other projected AoEs spawning. It has the possibility of knocking you into 1 AoE, then the hair yanks you back into a 2nd one. There may be a precise spot in the danger zone to move to for getting knocked to the safe spot indirectly, but it is much easier to just pop your immunity and move to the safe spot directly.
Most other cases are what you describe. It tends to just be a knock-back or draw-in that asks you to get as close or far away as you can. Simple enough to obey and save your knock-back immunity.