I read the whole article you posted carefully, but I didn't see that surprising statistic in it. Do you have a reference for that? That would be remarkable if true.
Religious = ‘dati’
https://www.jpost.com/israel-news/article-821800
...Among the respondents, secular individuals make up the largest portion of the population (43.5%). They are followed by non-religious traditionalists (18.9%), religious traditionalists (13%), religious (12.5%), and lastly, ultra-Orthodox (11.3%)...