Thanks for the quick answer and the view from "inside".
I had the same feeling about the mix of language abilities across crew and passengers so it wasn't a comment about the effective difference in safety just about the difference in procedures between airlines (which you addressed).
Now if I was really worried about the safety briefing and equipment I'd ask why they don't swap life jackets out for smoke hoods :-) but that's another question for another thread and another day (and I do have some ideas from a passenger psychology perspective as to why they are not fitted)