Chris I think you are reading it wrong. I don't know of anyone rescued alive after capsizing either.
forum Member Koho has done it Twice...
that´s why I ain´t scared with him either in any condition and he´s done other watersports also like me.
Rule no 1. Don´t panic( everybody does the first time..I did slightly at the immersion test even but you gotta get over it).
One good practice to do is to practice swimming and flip turns for the issue--or play underwater rugby..
There´s enough air inside a capsized boat and you get freed from the belts yourself.
The Boat doesn´t SINK Fast if at all.
While sailing dinghies I was about 7 yrs old when tought to go under a capsized boat if the sea is rough and your tired because theres a lot to hang into there, it´s warmer there and a lot of air also and it´s quite cozy in fact.
I was the first one *Ever overhere to turnmyself upside down in a flipped canopy..i.e. having my head up and therefore being able to either breathe the air inside or use the bottle and free myself of the lifejacket if needed inside the canopy if it becomes a problem.
Also one thinks a lot clearer and calmer IMO being upwards.
Oh sure it requires some agility to do that in a canopy... a lot of people wondered how I did it later I didn´t even notice myself do it..the divers mentioned it later.
Well to me it came naturally as in UW Rugby and competition swimming I´ve flipped since my pre teens ... add some Martial arts for the last 26 yrs in there and I don´t see a problem in it.
One has to be fit for race or stay at home... applies also for the poker runners IMO, and especially them and their crew.