I am against the shot clock as well. Like stated already, it's all apart of strategy. I understand it can be boring for the fans. But when did high school basketball become about the fans, or coaches, or officials, or anyone but the athletes on the court. The coach might use this because its the only way for his/her athletes to be successful. Let's be honest, if teams are using this they probably aren't rolling out four or five star recruits to play at the next level. Does it make them better basketball players, i don't know. I think there are still skills and an art to being able to drain minutes off a clock in basketball without turning the ball over, so some might say the coach is doing his players a disservice by teaching them this because they aren't learning basketball but I disagree. If teams are doing this other teams have to adjust. Find a way to speed them up and turn them over.
It's no different than high school football teams that run triple or wing-t. Everybody wants to be able to go four wide and sling the rock around the yard, but when you don't have the jimmy's and joe's year in and year out to do that you have to find other ways for your athletes to be as successful as possible. Stall ball gives teams that equalizer by limiting possessions just like the football team that limits possessions grinding out 3 and a third yard gains over and over and over.