Yes this is what we need for full keyboard users. As a heavy raider I do not use mouse at all in this game, 100% keyboard with camera as well (pro deeps too). The only frustrating part is when I need to take my right hand off the keyboard and move it to my mouse to then move the circle to another area.

Also this should not be limited to just AOE attacks, what about skills like Ninja's teleportation where we move towards a target?