Not being able to effectively move and attack at the same time is a huge problem with Phase 2 of PD, with so much going on its difficult to attack and dodge to mention, awful targeting often being the bain of the class, couple that with Auto Attack Ring - do not use this ring with PD, it will cause you so much problems as your pet will bug, sometimes disappearing and essentially wasting valuable time.
Being able to target critically important parts, and having your pet immediately attack those parts are two different things unfortunately and how many summoners can and will tell you how many times during an intense fight you practically have to micromanage your pets in order to attack properly.