I researched the WordPress Codex some more and analyzed the code I posted here and if you look at the top where it says $form_args, but then in comment_form($forms_args):
<?php
$form_args = array(
'label_submit' => 'Send',
'title_reply' => 'Write a Reply or Comment',
'comment_notes_after' => '',
'comment_field' => '<p class="comment-form-comment"><label for="comment">'._x('Comment','noun').'</label><br /><textarea id="comment" name="comment" cols="45" rows="8" aria-required="true"></textarea></p>',
);
comment_form($forms_args);
?>
So I just needed to remove the s from what I passed into comment_form:
<?php
$form_args = array(
'label_submit' => 'Send',
'title_reply' => 'Write a Reply or Comment',
'comment_notes_after' => '',
'comment_field' => '<p class="comment-form-comment"><label for="comment">'._x('Comment','noun').'</label><br /><textarea id="comment" name="comment" cols="45" rows="8" aria-required="true"></textarea></p>',
);
comment_form($form_args);