Home Page Include

I am trying to use include/exclude on my home page only but it doesnt want to play ball.

If i remove the incude array, everything works across all pages, so I know it is my custom function not working.

Any thoughts on where I am going wrong?

This is my function for the custom call

public function evis_include_home( $meta_box ) {
        $front_page = (int)get_option( 'page_on_front' );
        global $post;
        $id = $post->ID;
        if ( $id == $front_page )
            return true;
        return false;
    }

And this is my include array

'include' =>   array (
            'relation' => 'AND',
            'custom' => 'evisMetaboxes::evis_include_home',
          ),

The entire class looks like this

<?php

class evisMetaboxes {
    function evis_register_home_hero_meta_boxes( $meta_boxes ) {
        $meta_boxes[] = array (
          'title' => 'Home Page Hero',
          'post_types' =>   array (
             'page',
          ),
          'context' => 'normal',
          'priority' => 'high',
          'status' => 'publish',
          'autosave' => false,
          'fields' =>   array (
             
            array (
              'id' => 'home_hero_title',
              'type' => 'text',
              'name' => 'Hero Title',
              'std' => 'Evis Resort.',
            ),
             
            array (
              'id' => 'home_hero_tagline',
              'type' => 'textarea',
              'name' => 'Hero Tagline',
            ),
             
            array (
              'id' => 'home_hero_button',
              'type' => 'group',
              'name' => 'Hero Button',
              'fields' =>       array (
                 
                array (
                  'id' => 'hero_button_text',
                  'type' => 'text',
                  'name' => 'Text',
                  'std' => 'Explore Evis Resort',
                ),
                 
                array (
                  'id' => 'home_button_link',
                  'type' => 'text',
                  'name' => 'Link',
                ),
              ),
              'default_state' => 'expanded',
              'groupfield' => 'text',
            ),
          ),
          'id' => 'home-page-hero',
          'include' =>   array (
            'relation' => 'AND',
            'custom' => 'evisMetaboxes::evis_include_home',
          ),
        );
    
        return $meta_boxes;
    }

    public function evis_include_home( $meta_box ) {
        $front_page = (int)get_option( 'page_on_front' );
        global $post;
        $id = $post->ID;
        if ( $id == $front_page )
            return true;
        return false;
    }

}