Call shot is by far the worse rules ever anyway.
There's how many million amateurs? And how many pros(under 100). They just hate the idea of losing a game or match to an amateur, yet these amateurs are the ones that actually line the so called pros pockets with money. If it wasn't for the dead money amateurs in most events these pros would be making less then they are, which is hard to do.
A pro could lose a match and be pissed, but oh well live with it because it can be that amateurs career highlight that he will talk about forever. These rules discourage most amateurs as they need the luck factor.