No, you aren't missing anything, Greenfield just got its act together and made it considerably easier to remove the clutch shaft, by changing the design of the thrust bearing mechanism. It is now pivoted at the idler pulley end, and connected to the clutch linkage at the top of the picture. As you said, the two pins are very easily removed, leaving the whole thrust bearing mechanism free to move sideways as you juggle the shaft and pulleys from side to side to get the side bearings out of the chassis rails. Now, why didn't they make it like that in the first place?
