Bug on Dino Island in The Diadem

I inadvertently discovered a location on what many players call Dino Island in The Diadem (approx. x28 y27) where there is a fallen tree you can stand on and avoid certain star mark monsters' attacks, specifically the Brachiosaur's Meteor, Great Balls of Fire, neck swipe and auto attacks. Other attacks from other mobs seem to hit though. This bug seems much like the tree bug found in Amdapor Keep first boss. Not sure if this is actually working as intended or not, but I wanted to point it out in case its an accidental oversight.