It would be very interesting to meet her and have a chat. Which K/Canton is she from? I bet she speaks good English, and her children went to local schools and if a Church goer she goes to the local Church. Although there is a large Congration and Swiss Church in London. I only became aware of 'expat' type attitudes when I came back to live here, and never during all my years in England. I know expats here who can't string a basic sentence together and have no local friends or associations after 10 or 20+ years- and who say that English should be made an official language here, as French, German or Italian are no use to anyone!
Jalima- a majority of expats here in Switzerland send their kids to International schools where the main language is English, and often say that that made integration and long-term higher education very difficult, as well as finding jobs, and make friendships, etc. As the education system in Europe is based on a wide curriculum to 19, instead of the very narrow AS, A'Level system (which also has huge advantages for some) - unless a youngster speaks and writes formal German or FRench (or Italian) depending on the area- going on to academic education is just impossible.
Hit a nerve perhaps? Expats who do not integrate, learn the language and then complain the locals are not friendly, etc- whilst complaining about immigrants back home, are totally OTT, whatever nationality they are, Swiss included (who often think they can just arrogantly wave money around and that will be ok!).