Right? The AIA made it easier and cheaper (*) for big companies to invalidate the patents of small inventors who try to assert their patents against them. It reduced the amount of money that big companies will pay to license a patent because the threat of an infringement lawsuit became less valuable. It literally took value from small inventors and handed it to big business.

(*) Edit: An IPR may seem expensive (~$500k is average), but if successful it is much cheaper than winning a patent infringement lawsuit ($millions).