I don't think I said
"I've heard it so many times ...".
My comment on the BA video was that it was out of sync with what was happening. We're already moving and should already be strapped in and "To fasten your seat belt, insert the ..." Then they tell you that your carry-on must be in the overhead lockers or ... long after that already has been done. This is BORING after the first dozen times.
The Hudson experience tells us that few people (except PPRuNers of course) pay attention or read the card.
If we want better knowledge we need to rethink this. What's being done isn't working.
I suggested above that those obnoxious CNN/SKY news video machines at the gate be used to show you the safety video. Perhaps something a little more realistic - such as showing a realistic depressurisation (noise and fog and all of that). Wouldn't you love to see a realistic depiction of the slides forming rafts?