It was a bug that got patched, I assume. There's been a minor update to the app sometime between 2am and 11am GMT today. Homer did part 1, but part 2 didn't trigger, and I'm guessing that's because it should've only unlocked when you buy Blue Haired Lawyer for donuts.
I got the blue haired lawyer for the mystery box, which was a 84 donut discount. I also got Kearney that way.
Same
Just no Kearney