You are correct, I do keep expecting my DSLR's to withstand the same punishment as i handed out to my F4 and its predecessors, especially when doing access work. It just amazes me that in 2013 we can't come up with better seals than those spongy doors.
It is my fault that I push bodies (and lenses) to the limit, but I am sure that i am not alone in thinking that a less convenient to open accessory socket cover, supplied with bodies alongside the easy to open flaps, would be a welcome addition. Among the local photographers in my area there are climbers and cavers who shouldn't need an underwater body (unless going through sumps) but who are switching to products with inferior optical performance because DSLR bodies just aren't as tough as their film predecessors.
Incidentally, my Kodak ProSLR/n bodies survived worse conditions over many years, and bear the scars, they're just functionally out of date.