HC,
Most of your arguments are logical and well-reasoned but here I think you're just being argumentative for the sake of it. The reference to inter-twined legs is clearly just a method of highlighting conditions in the back of the aircraft, not a reason for randomly accusing an entire workforce of being a bit precious about levels of comfort. You're starting to come across as a bit dim, which you're obviously not, so please stop it. Furthermore, I feel it would be sensible for you to stop tempting fate by labelling ditchings of this type as a 1 in 22 year event. Cold statistical facts are for the use of management and money men.