I"m pretty sure it was just one day for the Karen shoot; like, when she has a natural type of look. I'm pretty sure that's the concept of 24 as a whole, though.
I'm kind of with you, though; that's why I like Ishiyoshi vs. something like YoMako or YoMiki. They're cute, but feel kind of forced and in your face, like "THEY'RE LIKE A COUPLE, HUH?" (which is why, I suspect, they put all the emphasis on YoMako to take some of the emphasis off of Ishiyoshi). So background pics are more fun.
Come Together's a great example, haha; I once read that the Come Together backstage stuff was all spontaneous, and while that might have been merely speculation, it's sure fun to think about.
As long as there's Ishiyoshi gropage, if it's H&A or Ishiyoshi I'm pretty happy either way. ^^