I'm not really digging the whole "marked by fate" explanation of Wanda's popping that we were given here. Part of the fun of reading Erfworld has been watching Parson and the other characters struggling to figure out how things work in Erfworld and dealing with the question of whether or not there really is some grand meaning to their actions. A lot of effort has gone into making those questions some of the bigger ones in the comic for both us and the characters. Simply tossing answers to them out there like in this manner diminishes their importance to us which actually causes us to lose some of our connection to the story and characters. For example, when I first read this page,
I was sympathic to Parson's questioning at the end, now those questions have lost most meaning to me as questions I should be asking myself and are simply marking Parson's progress on the development of his knowledge of how Erfworld works.
There's also no room for arguing with the explanation we're given here. The facts described here are presented free of character personality by neutral narration. Wanda is simply more special to the fate of Erfworld than other people. And since she can be more special, then that means there really is a entity in Erfworld that declares people as important or unimportant to the fate of the world and does so based only on its designs. The 'Person of important' worldview that Slately believes in
is reality. The Titans really do have a plan for the world and enforce it thru whatever means required. People in Erfworld each have their medichlorian counts set at popping determining how much they can do in the world. It doesn't matter if you're the grand high pooba of a 1000 city side capable of crushing all that stands before you that you put together from scratch, what ever you do with your power will never be as important to the fate of the world as the actions of the guy who was popped to do something more important according to fate. If you try to outdo him, you will fail unless part of his destiny is to affect you with your success.
(To those of you wondering why I'm complaining now about the presence of an unknowable entity or entities who monitor Erfworld's development since knowledge of them should be universal to every erfworld reader because the Titans were introduced on page 1 of book 1, I have one thing to say: Before this we had no proof that they or 'fate' did anything more to the world besides build it. Everything before this has been questionable in one form or another.)