Having read the article, it appears that the Israelis don’t understand much how little authority and how small the followings preachers in the United States generally have.
They try to look a a smattering of megachurch pastors and authors whose appeal sells to secular audiences enough to get them on bestsellers lists, and then assume that those sources which have already been prescreened to appeal to secular culture somewhat represent the bulk of Christians.
Evangelical support for the nation of Israel is well beyond a smattering.