By Zach Koons The decision confused those who thought the league already had clear guidelines in place. The NFL owners passed a resolution to change the AFC playoff rules on Friday after the league officially declared the Bills-Bengals Week 17 game a no contest in the wake of the medical emergency suffered by Buffalo safety Damar Hamlin. Though the league did its best to accommodate rather unique and sensitive circumstances, some have found themselves confounded by the decision to bypass already agreed upon rules for a new system. For instance, the Bengals expressed disappointment that the NFL…