ecp-all-view.hide-past-recurring-events.php

<?php
/**
 * Hide 'expired' events from the /all/ recurring events view.
 * 
 * This snippet is best added to a custom (mu-)plugin, for instance:
 * 
 *     wp-content/mu-plugins/ecp-customizations.php
 * 
 * It is only intended as a temporary shim until a future version
 * of The Events Calendar or Events Calendar PRO resolves things;
 * it may or may not play nicely with other customizations. Use at
 * own risk!
 */
add_action( 'tribe_events_pro_pre_get_posts_recurrence', function() {
    add_action( 'pre_get_posts', function( WP_Query $query ) {
        static $once = 0;

        if ( ! $query->is_main_query() || ! tribe_is_showing_all() || $once++ ) {
            return;
        }

        $meta_query = (array) $query->get( 'meta_query' );
        $meta_query[] = [
            'key'     => '_EventStartDate',
            'value'   => date_i18n( 'Y-m-d H:i:s' ),
            'compare' => '>='
        ];

        $query->set( 'meta_query', $meta_query );
    }, 1000 );
} );