I have just been browsing through the Kienzler article. My impressions: Kienzler's interpretation of Newman might leave much to be desired... He calls Newman an empiricist, a rationalist, and so on. If Lonergan's reading of Newman is right, he is no such thing!
But this is a large question of interpretation - a fine example of one's basic philosophical commitments radically interfering with one's understanding of an author... and a great case for the practice of the Functional Specialty dialectic... put all interpretations in line, find out the radically conflicting points, and reduce them to their roots in basic philosophical positions.
Despite that, Kienzler has done a great job.
Some good work in store for a Lonergan/Wittgenstein enthusiast?