Nothing more pleasant than keeping the juices flowing, in this case, cerebral.
The "hinged deck" addresses the needs of day trips for quick access storage space beneath front bay seating. To fit it into the context of multi-day removable, sleep-on-boat considerations is as ZB says, a problem.
Frankly, it would never fit into my loading considerations which is usually multi-day. To be confined by a firm divider/passenger seats in a bay is a waste of space. Better to pile it up and pinch it down. But I rarely and prefer not to deal with passengers (and if she doesn't want to kayak, deal with it).
So, in the broader consideration, a removable flush deck is for benefit of passengers.
I'll leave it at that for friendly response(well except for her(kayak! You have a better roll than I do or most do!)).
