Hunting is 99% spending time getting into a position to take a shot, and then dressing your kill (and, for larger animals, getting all that meat out of the woods) and less than 1% aiming and pulling the trigger. This weapon increases the chances of you accurately targeting the vitals on an animal at ranges from 100 to 200+ yards, which a lot of hunters would probably be nervous about trying to shoot at.
Ideally, this weapon would reduce the number of animal injuries, and increase the number of immediate kills.
[edit: Ah, I just re-read your comment - you are actually saying you understand the use of this weapon while hunting, but don't understand the purpose of target shooting with it. Perhaps to prepare for hunting?]
Except when there are really[1] fun[2] targets[3], I generally get bored too. I do love sporting clay, which is similar to trap and skeet, except you walk from one station to the next, and the patterns are different at each station.