Detonating arrow behavior

Why detonating arrow don't target the ground ?? It's a detonator, meant to combo with poison cloud, but for some reason it doesn't target the ground. Exploding bolt work that way and work fine with poison grenades. The arrow version feel very inferior : don't target ground and force you to charge it and stay immobile.

If you have any form of piercing, it passes your poison clouds. No piercing, it detonate early on first monster. Poison arrow with piercing is fine, it allow you to aim in middle of monster group, but them exploding arrow doesn't combo with it most of the time.

The first poison arrow you get has the same problem with the vines, just impossible to combo. You must use gas arrow for reliable combo.

GGG could implement a toggle in skill window that allow you to decide if you want a projectil skill to aim at the ground or not.