Ithink the pressure is lower based on what I see, but what do I know??
Well like said before, very few of us are experts here, though so many people mysteriously became experts on mechanical engineering in mile deep water when this happened. I was thinking that if the pressure was not that high that at least eliminates option 5 from the above list from happening. And any of options 2 through 4 would be fixable if it happened. Of course, it would not happen instantly and that would create more of the same problems we have already seen.