Ooooh yes, I was thinking exactly the same.... the pieces just don't add up. I actually left out the first "lick" which was that left hand pattern combined with the blues scale. YUCK, my poor ears. I agree with you all the way - the "mother of all turnarounds" didn't quite fit in the piece and I tried to stretch it out a little to try and tie the "rigid" pattern with the "jazzy" one. I think you are right that this is not a single piece, it's just individual exercises.
Yup, another lesson done I think I'll tackle one of the eight pieces next, that should be fun!