I don't completely agree re admitting the pick was wasted. You do not make 2016's draft picks in 2019 with three additional years of information to assess. The Kings drafted Harry, a promising player with a serious injury history, with the idea of red shirting him for a year and then seeing what he could do. At best he responds well to rehab, gets onto the court and makes a difference. At worst he never plays. In reality he played a little bit, made a bunch of fouls and some nice passes but is now hurt again. He is still on the team, so the experiment is not over, but it obviously hasn't gone as well as possible and they decided not to extend him.
Comments on spin, Sacramento decision fatigue, Kings selling/fans buying hope etc might influence why some are upset - but when assessing Harry Giles' progress in a vacuum - I am not upset with how it has played out so far. They drafted a low floor, high ceiling guy and have had a sensible plan with rehabilitation and gradual minutes. It is not over.