His videos were a great comfort to me in my atheist years, kept me admiring the Church even if I wouldn't submit to it.
Adam not being an actual person is a pretty reasonable stance in light of evolutionary science and the Catechism (http://www.vatican.va/archive/ccc_css/archive/catechism/p1s2c1p6.htm, read paragraph 375), and I don't think for a second that he dismisses the spiritual reality of Genesis or the fall.
Reasonable hope that all men will be saved is heterodox, but not heresy, and he makes a clear distinction between Origin's heresy of universal reconciliation and Von Balthazar's theology. At the end of the day he defends the fact that grace can be rejected, and at the end of the day it isn't reasonable to think that a Charles Manson or a Caligula will be saved, but it also isn't our place to judge declare anyone short of canonized saints definitively saved or damned.