fetchAll只返回一行，但全部计算？ Symfony / Doctrine

I am trying to return an array result from a query - but I'm only getting the first row back.

The count returns 5 (which is the number of the rows that matches the query) - what am I missing in order to display those?

    public function getFailType($email)
{
    $q = $this->getEntityManager()->getConnection()->createQueryBuilder();
    $q->select('dnc.comments, count(dnc.reason) as total')
        ->from(MAUTIC_TABLE_PREFIX.'lead_donotcontact', 'dnc')
        ->where('dnc.channel_id = :channelId')
        ->groupBy('dnc.comments')
        ->setParameter('channelId', $email);

    $results = $q->execute()->fetchAll();
            $count = count($results);
    $dnc     = isset($results) ? $results[0] : null;

    if ($dnc === null) {
        return false;
    }

    return [
        'count' => $count,
        'total'        => $dnc['total'],
        'comments'     => $dnc['comments'],
    ];
}

Returns the following:

$printout->getFailType($objectId)['count'] = 5
$printout->getFailType($objectId)['total'] = 20
$printout->getFailType($objectId)['comments'] = Contact unsubscribed via email