Thank you very much @matthewmcvickar, you were totally on it there! Turns out there’s two ways to do it.. the first is to turn off the auto-sort functionality in the plugin’s settings or you can use the ignore_custom_sort parameter in the query.
'ignore_custom_sort' => true,
'meta_key' => 'date',
'orderby' => 'meta_value_num',
'order' => 'DESC'
Thank you for your help.