Get_blog_option issue

How does this plugin relate to the get_blog_option( $blog_id, 'blog_public' ) setting? I have a site on my multisite that is in admin only mode using the Multisite Privacy plugin, but when I call the get_blog_option( $blog_id, 'blog_public' ) function, it returns as a public site. What am I missing here? Assuming the get_blog_option( $blog_id, 'blog_public' ) setting is no longer valid because of this plugin, is there a way to retrieve the Multisite Privacy setting for the blog id?

Thanks in advance