You're right, once you put them next to each other it's obvious. It's what I thought was the case all along. Guess I'll be getting the bigger flares and 35's for my manual Badlands...I was actually thinking those were the smaller ones. Which would lead me to believe that the standard ones are the correct flairs for anything up to a 285 tire, and the 315s need the wider ones.
Here's a picture of a squatched bronco with what I assume are the wide flairs, and look wider than the ones in these shots.
Squatch (315 35" tires):
Wildtrack non-squatch (285 33" tires):