I think the biggest problem is that people misunderstand the concept of splinter orgs. A splinter org, as extreme (or not) as it may be originates from the parent org or, for all intent and purpose, a principle that is the foundation.
Cypherites and E Pluribus Neo arose during a time of great tension between Zion and the Machines. Before the war the differences they had with their parent was obvious. Now that is no longer the case. However, there are still differences otherwise there'd be no one to makeup the orgs themselves. The "base idea" is the same but the means to that end is what separates everyone.
It's wrong to accuse a different organization of having no purpose, or at least not one that satisfies you personally. I would never imply that someone doesn't have a purpose. I've never walked in their shoes and have no idea what drives them or their companions. I don't have to understand it but I do respect that within each of us is something that compels us to move forward. You have your reasons and we have ours. We don't and will never need someone to give us purpose. We all find it on our own.
If it changes, we will adapt and keeping walking towards tomorrow.
We are not talking about individual purpose. We are talking about an organization's purpose. One that in no way its own. It is a carbon copy only more focused of one of the many purpose for the Machine organization. There is nothing the Cypherites want that the Machines do not want. Nothing that they do that the Machines could not do. The splinter orgs worked when there was tension, they do not work now that the tension is gone and we are all at war.
The war striped individuality from the Cypherites, they were no longer needed to be the black ops org for the Machines that worked for them outside of the truce. They no longer have a purpose that is their own as reinsertion is impossible. They are just Machines now only with two human leaders rather than programs.
Thus and "Cypherite" purpose anyone claims to have is non existent, it is only a Machinist purpose wearing a mask over a suit.

