Seriously, however, there is a huge difference between simply being a Novus Ordo Catholic and formal apostasy. Now, many NO Catholics are in apostasy, but simply belonging to the Conciliar Church does not suffice ... because it's very possible to be in material error. I know many NO Catholics who adhere to the Conciliar Church because they THINK it's the Catholic Church, so their formal motive is still Catholic.
Notice also how this is different than "sincerity". Maybe this priest is sincere and has come to believe in Orthodoxy, but that does not render him a merely material schismatic. He's a formal schismatic at this point. Period.
This notion of "sincerity" has been warped (due to the rise of subjectivism) into being the chief factor in "formal" error. That is not the case.