Given that this gentleman was a Baptist, I would suppose he already considered himself to have “converted to Christ” long before he ever became a Catholic. The point of his discussion is obviously going to be “why I am a Catholic Christian now, not a Baptist Christian,” not “why I have been a Christian for a long time, not an atheist, Buddhist, or Zoroastrian”.
Talk to someone who became a Catholic from a non-Christian background, and their emphasis would be a bit different.
bereanbeacon.org
A Catholic Priest is Biblically Saved
http://www.youtube.com/watch?v=-VKiv3ZGAWo&feature=youtu.be
Why Did 50 Priests Leave the Roman Catholic Church?
https://www.youtube.com/watch?v=mjTVv5rXCgA&feature=youtu.be