On paper I agree with you but butterfly is one of the worst mechanics in this game for goalies. Your movement is delayed, being able to skate around the goalie while hes in butterfly is one of the easiest things to exploit, as well as hitting a 1t is almost a guarantee while a user goalie is in butterfly. So back to my other point is that if a mechanic like this doesnt have enough precision to equal or better that of the opposing offense then it needs to be balanced to create a solid experience. This puck shouldnt go in because we can not effectively be in butterfly. And anyone who plays goalie will tell you this.