Links not preserved in RSS feeds

This is by design: the plugin only adds links on single post pages.

If you want to put links in the feed, you can do something like…

add_filter('seoal_only_single', 'seoal_rss_links');
function seoal_rss_links()
{
    // are we on a feed page? If so, return false -- allow links
    return !is_feed();
}

in your theme’s functions.php file or in a plugin.