Interesting topic!
I think I am correct in saying that Michael Orland helped with the song arrangements for JBT, if not forget what I am about to say.
Micheal Orland is the musical director or some kind of musical something (I guess I need to get a fact checker!
) on AI now and back on AI2. I would venture to guess that in all of the things that he helped prepare for AI2, he was already very familiar with the guest judge's work and was able to make some of those suggestions in the prep for JBT.
I don't think it was necessarily a conscious effort on Micheal's or Clay's part to correlate JBT to AI2, they were just songs that they liked and made work in JBT.