I think one difference with FA and AW compared to other LFS is that from the start up of their stores, the owners had a main goal focusing on "coral propagation" for the purpose of selling and trading frags. This included growing out colonies and selling frags from them while keeping the main colony in tact. Of course their plans changed slightly over time, but I think it is that plan and attitude that is why you don't see fragging of existing colonies as much elsewhere.