@ExXB. More easy bashing from you! The foreign language PAs on "Squeezy" as you so maturely put it are in a way that you don't need shown at the time of the announcement. The instructions are detailed in a way that you don't need to follow a crew member.
The English is then played with the demo and reaffirms what has been said in the foreign language PA. It is a CAA requirement that it is done this way. I believe easyJet are going to be able to do the safety demo in local languages such as French or Italian domestic routes as part of the AOC.
As one of Europes largest airlines serving many countries and languages, how do you propose the manual demo is done if crew don't speak the language (same as for example BA crew). There are trilingual destinations too. Again what do you propose?