Menu not hiding from all pages listed in array

Hi there,
I am using the ShiftNav sliding menu on pages only in the members area therefore don’t want it on my main pages such as home, blog contact etc. I have used the code from your documentation:

add_action( 'wp_head' , 'remove_shiftnav' );
function remove_shiftnav(){
    if( is_page(array(1400, 2212, 1950, 33, 20, 2169, 2109, 6, 2, 2114, 2053))){
        remove_action( 'wp_footer', 'shiftnav_direct_injection' );
    }
}

However the page 1400 which is the blog does not have the menu hidden despite all of the other pages not showing. I have tried using ‘blog’ (which is the page slug) instead of the page ID but no joy. Any ideas what the problem might be?

https://www.ads-software.com/plugins/shiftnav-responsive-mobile-menu/