WooCommerce – get_template_part ?

Just trying to figure out here is WooCommerce blocking all default WordPress include tags form their templates?

Like get_template_part(); that’s a default WordPress function.
What if I have overridden a WooCommerce template just like the Woo. documentation says, copy X template into your ‘woo commerce’ theme folder.
Works great and nothing special almost every better plugin does this trick but what if I want to include a custom file.php into that overridden WooCommerce template file which is mine now because it’s in MY theme folder so it belongs to me not WooCommerce.

I have this feeling WooCommerce is blocking those pretty default WordPress include tags the WP Codex offers.

If I do this I get no results returned:

<?php get_template_part( 'includes/woo/my-file.php' ); ?>

Inside that ‘my-file.php’ there is only a echo ‘hello world’; to test and see if it gets included but nothing will come up.

If I do this in my functions.php it works.

function include_my_file() {

	require get_template_directory() . '/includes/woo/my-file.php';

}

and then in my woo. overridden template file I simply include the function <?php include_my_file(); ?>

Why does it do this ?

https://wordpress.org/plugins/woocommerce/