Weform: Send email to the email field in the node reference field using rules I have content type Organiser. and it has an email field Organiser email.

I have created a webform and added a node reference component which is referencing the Organiser content type. 

I want to send an email on webform submission to the email address entered in the Organiser email in referenced node.

Is it possible with rules without entering the php code in the rules action?
I have done some work around to get this functionality.

Created a hidden component to the webform.

Then through hook_form_alter, get the organiser email from the referenced node and set it as the default value to that hidden field.

Then in the webform email settings, I selected that hidden webform component as the "Email to address".