Simple: he was caught with his pants down and moved to quickly scrub the use of the stuff ripped from News Music Now once it was exposed to the right people that he was doing that. He probably made it private hoping nobody else would see that he was doing that.
I am going to go out on a limb and say that he had probably hoped nobody would ever catch him doing this, and it worked, almost. Kind of an odd logic to have when you boast about being seen in over 115 million households.
He also started to scrub the NMN stuff from his other show, "The Reed Report" and now uses some random YouTube music:
It looks like he was doing this with his other show too, "Valley View with Austin Reed" (how many shows does this guy have?). That one is/was using the old TXCN music and Impact in a sponsor bump. Again, I think once Austin realized what he was doing was not cool, he corrected this. That said, he shouldn't have been doing it in the first place.