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.
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?]