This also applies to some other things as well, like mage’s Meteor. Basically anything that, if you are playing with mouse and keyboard, works to put the ability where your mouse cursor is located.
So yeah it’s not a huge deal but when playing with a controller, these abilities seem basically random in where the game decides to place them and it makes me not want to use these abilities.
In the case of Ballista turrets on the rogue, I like to place those in strategic locations at like intersections and chokepoints and whatnot. Well with the controller it’s like “Okay haha guess I’ll put them WAY over here for no reason! Oh you wanted it here? Howabout here instead?”