Stage 5: Final Preparation and Reconciliation
Final preparation for what? Unity? There is only 1 unity that is acceptable. That is all coming back to the faith of the Apostles, which is Orthodoxy. I doubt very seriously that any of the above would do anything to bring all back to Orthodoxy.
Well, the author of that blog is Catholic, so I'm sure that he/she does not agree with you that the faith of the Apostles is Orthodoxy. But if you read the rest of what I quoted, I'm sure you will see that he/she does agree with you that the goal is "all coming back to the faith of the Apostles" (which he/she understands to be Catholicism):
Stage 5: Final Preparation and Reconciliation
The various preliminary stages above are supposed to lead to conversion in the sense of formal enterance into the Catholic Church (i.e., "full and visible communion"). Therefore, this last step is not considered ecumenism, strictly speaking, but rather is considered as the ultimate goal of ecumenism.
(emphasis added)