Whereas the boat folds to "four inches flat" the seats are thick, hard plastic and don't look to me like they store easily anywhere on a boat, much less a smaller boat.
I continue, in my mind as I'm not on the water again..yet, to cling to the roll up with slat floor Zodiac I've used sparingly for thirty years, always stowed under the cockpit of my boats, and pumped up on the cabin top.