Single Product Summary Priority

I’m trying to wrap the single product short description in a div using the following snippet but for some reason its placing it after the add to cart form! (https://prnt.sc/pqig6p)

function short_desc_prefix(){
	echo "<div class=\"short-desc-desktop\">";
}
function short_desc_suffix(){
	echo "</div>";
}
add_action( 'woocommerce_single_product_summary', 'short_desc_prefix', 19);
add_action( 'woocommerce_single_product_summary', 'short_desc_suffix', 21);

I would expect this to have wrapped the woocommerce_template_single_excerpt

/**
* woocommerce_single_product_summary hook.
*
* @hooked woocommerce_template_single_title - 5
* @hooked woocommerce_template_single_rating - 10
* @hooked woocommerce_template_single_price - 10
* @hooked woocommerce_template_single_excerpt - 20
* @hooked woocommerce_template_single_add_to_cart - 30
* @hooked woocommerce_template_single_meta - 40
* @hooked woocommerce_template_single_sharing - 50
* @hooked WC_Structured_Data::generate_product_data() - 60
*/

Any ideas? I contacted Astra theme developers but they sent me here!

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