By choosing whom to interview, she missed the point completely. Israelis do not stay among themselves because they like it. They stay in the bubble because American's do not like the Israeli culture. There are many Israelis (Europrean mostly) whom never associate with any Israelis and fit with the local people right away.
I never had Israeli friends in the US. All my friends were American and American Jews. never felt the need to connect to other Israelis although I keep in touch with my friends in Israel after 20 years in the US..