This is actually rather interesting. Typically such rituals are developed as both a way of forming a bonding experience and as a form of leverage over members. Similar to the mafia requiring lower level members to perform certain crimes before they can be trusted. These are "social crimes", but the same concept applies.
So, the interesting bit here is not the fucking of dead pigs per se, so much as the bonds of at least one such privileged and exclusive group apparently unravelling. May many more follow suit!