I guess most of the participants here know the flight security briefing message more or less by heart (How can you close and open your safety belt? How many exits are there? Where? Which word are they clearly marked with? Can you find the nearest exit by looking on the ground? Where's the life vest? How to put it on? Should you inflate it before exiting? How can you add or release air from it? What is that little light for? What happens upon loss of cabin pressure? How to put on an oxygen mask? How should you breath with an oxygen mask on? With helpless people next to you, should you first help them or first take your own mask? Where can you read more about on-board safety?).
As far as I can tell, the text has hardly changed over decades (ignoring any differences imposed by technical differences between plane models). One exception: I guess a few years ago, they started adding the recommendation to keep the belt closed during flight. But what concerns me a bit is a tiny change in formulation that - as far as I can tell - has been introduced only a few months ago (but I have repeatedly observed it since): The phrase "In the unlikely event of loss of cabin pressure ..." got shortened by removing the word "unlikely".
First of all: Is this observation correct? Or did that possibly only happen for the few airlines I tend to travel with?
Second: What could be the reason behind removing such a comforting word?