Cademimu pulls you in, regardless of range. Hammer station stuns the whole area, regardless of range. Athiss knocks back whole area, regardless of range.
The only one which is somewhat melee biased is the one on mandalorian raiders due to the temporary aoe.
Both Cade and Hammer Station's bonus bosses' aoe could be avoided if you stay far enough or stay behind the box. Especially the Sith in Cade.