For those that are seemingly focusing on an O2 fire in the cabin, I would caution you that there is no confirmation that there was a fire in the cabin
Con, my take on the discussion has been that there has been no suggestion of a fire in the cabin, merely talk of the dangers of the gas and what it is capable of.
Sometimes if one places too much importance on an eyewitness report
And some of the very worse witnesses are fellow aviators. Remember during an accident investigators course we were shown a film of an aircraft taking off and subsequently crashing, and were asked questions as "expert" witnesses.
Type of aircraft? Answer F-86, Wrong - actually a G91
Cause of accident? Answer engine fire ("smoke" seen throughout take off roll) Wrong - "smoke" was spray from a water drenched runway. And so it went on.