Putting the answer I received via Twitter here for others to see:
It was the sticky post under the Featured Comic section that was creating that phantom Untitled Article. So, by adding:
'post__in' => get_option( 'sticky_posts' )
to the arguments, it got rid of it. New code for the Featured Comic now looks like this:
<?php
$featured_comic_args = array(
'posts_per_page' => 1,
'post__in' => get_option( 'sticky_posts' ),
'ignore_sticky_posts' => 1,
'tag' => 'buy-me, buyme',
);
$featured_comic = new WP_Query( $featured_comic_args ); ?>
<?php if ( $featured_comic->have_posts() ) : ?>
<?php while ( $featured_comic->have_posts() ) : $featured_comic->the_post(); ?>
<?php get_template_part( 'content-homefeatured' ); ?>
<?php endwhile; ?>
<?php wp_reset_postdata(); ?>
<?php else: ?>
<?php endif; ?>
Hope that helps someone else!