Jake, that's one way of looking at it:
then i read the last line: " In this enterprise, the path of Christians towards full unity is a great sign of the times and a response to the Lord’s prayer 'that they may all be one.’ ”
If we think of "rebirth" more wholistically, as ecologic process, totally inclusive ('full unity') of earth-life in its transformational trajectory, then 'path toward full unity' only makes sense in the inclusive understanding of earth-life as holistically 'one' in (E)eucharistic inclusion.
The 'sign of the times', of biological ignorance and cultural insensitivity, compels a much bigger and more inclusive worldview than Christianity presumes in its small-world, Biblically-sourced worldview.