I also get hit after using the DRG's backwards jump to get out of the way seconds before the attack is executed.
For Elusive Jump or any position adjustment skill, you are considered in your original position until after the animation completely finishes. What this means is, if a mob targets the ground you re standing on with an AoE, and you use Elusive Jump, your character is still considered standing in the AoE until after you land from and recover from the movement. This may seem counter-intuitve since your character model appears to have moved, but the server isn't updated about your position until after the animation finishes, so you can still get hit. Unless you do it super early in the cast, it's generally considered risky.