Real RPG players aren't afraid to roll characters. The purchase method has always been despised by players, and if you can't trust your players your are sunk anyway.
Reading the core rulebook they allow rolling but the Guide to Organized Play has to choose the stupidest method for generating attributes. Add to that the fact that the existence of Society events cuts back on what would be more people having regular rules games and you are treating your players like crap.
D&D lasted for years without inventing Big Brother to "normalize" play. Can't someone amend these stupid rules.