Site Generator Plugin and Nelo Theme Questions

I'm testing the Site Generator plugin with the Nelo theme, and have some questions. First, Nelo has the default WP version generator meta tag in header.php, but then does remove_action( 'wp_head', 'wp_generator' );, which appears to block the generator plugin. If I remove that line, then it displays the text set in Site Admin->Options, but not the link.

Can anyone explain why the theme includes the remove_action or why the generator link doesn't appear?

This is in, latest versions of plugin and theme.