Excluding Specific Tags?

I’ve been able to edit the plugin to exclude tags by tag ID by adding this:

line 139:

if( isset($_GET["csrp_exclude_tax_term_id"]) ){
		$csrp_exclude_tax_term_id = sanitize_text_field($_GET["csrp_exclude_tax_term_id"]);	
	}

and line 264:

	if( isset($csrp_tax_name) && !empty($csrp_tax_name) && isset($csrp_exclude_tax_term_id) && !empty($csrp_exclude_tax_term_id)){
		$csrp_tax_term_id_array = explode(",",$csrp_exclude_tax_term_id);
		$args['tax_query'] = array(
				array(
			'taxonomy' => 'post_tag',
            'field'    => 'ID',
            'terms'    => $csrp_tax_term_id_array,
            'operator' => 'NOT IN',
				)
			);
	}

Can this be added in to the official plugin?