Lazy lode does not work in embedded post

Hello,

I am using this plugin and it works fine.
But when my post is embedded by oEmbed (the URL mentioned in another post), no thumbnails are shown.

For your information, it can be solved by this code in my functions.php.
add_filter( 'do_rocket_lazyload', function ($r) { return $r && !is_embed(); } )

Thanks.