I haven't followed it at all. When it became evident there was never going to be another Liberty Bell game, Rugby League became a lost cause to follow in the USA.
I think a split in the US Rugby League sides is ridiculous, there's barely enough of them around to even warrant splitting regardless of the reasoning behind it.
It's easy to say that but you need to put yourself in the shoes of people like Spinner Howland. Some of these guys work their butts off to build up their clubs and create interest in league but have virtually zero say in how things are run and the future direction.
The final straw as I understand it was Nui selling the rights to the AMNRL to a company and then becoming an employee of the same. A group tried to get some change but Nui wasn't interest. Given the choice of his way or the highway they decided to do it themselves.
Personally I think this will be a step forward so long as the IRL makes the right call. The USARL seems to have a better base and plan.